Disconnecting switch closing position detection equipment

Abstract

The utility model discloses a disconnecting switch closing position detection device, comprising a device table installed through bolts, a detection box arranged at the lower side of the device table, a driving mechanism arranged in the detection box, a rotating porcelain bottle extending to the upper side of the device table and coaxial with the driving mechanism, and a rotating shaft arranged at the lower side of the rotating porcelain bottle. A rotary switch is arranged at the upper end of the rotary porcelain bottle, and supporting columns fixed to the equipment table are arranged on the left side and the right side of the rotary porcelain bottle correspondingly. The disconnecting switch closing position detection device can timely remedy when deviation occurs in the opening and closing position.

Description

Technical Field

[0001] The utility model relates to the technical field of isolating switches, in particular to a device for detecting a closing position of an isolating switch. Background Art

[0002] Isolating switches are a type of electrical appliance that is widely used in high-voltage switchgear. Their working principle and structure are relatively simple, but due to their large usage and high requirements for working reliability, they have a great impact on the design, construction and safe operation of substations and power plants. The main feature of isolating switches is that they have no arc extinguishing ability. Isolating switches are used at all levels of voltage to change circuit connections or isolate lines or equipment from power supplies to ensure the safety of high-voltage electrical equipment and devices during maintenance work.

[0003] At present, when the substation disconnectors on the market are switched on and off, due to long-term use, the lower transmission unit may become loose, causing the upper conductive knife and switch contacts to deviate. Most products on the market cannot promptly remedy the deviation between the conductive knife and the switch contact, and usually require maintenance personnel to go to the site for inspection. Since the waiting process is likely to cause large economic losses, the present application proposes a detection device that can promptly remedy the deviation of the closing position of the disconnector. Utility Model Content

[0004] In view of the deficiencies in the prior art, the utility model provides a disconnector closing position detection device, which can promptly remedy the situation when deviations occur in the opening and closing positions.

[0005] To achieve the above objectives, the present invention is implemented through the following technical solutions: a disconnector closing position detection device, comprising an equipment platform installed by bolts, a detection box provided on the lower side of the equipment platform, a driving mechanism provided in the detection box, a driving end of the driving mechanism extending to the upper side of the equipment platform, a rotating porcelain bottle provided coaxial therewith, a rotary switch gate provided on the upper end of the rotating porcelain bottle, and support columns fixed to the equipment platform on both the left and right sides of the rotating porcelain bottle;

[0006] The outer side of the rotating porcelain bottle is provided with a fixed block, and horizontal rods are provided on the four sides of the fixed block, and through slots are opened on the horizontal rods;

[0007] A portal frame with an opening facing the horizontal rod is provided on one side of the two support columns facing the horizontal rod, and a limiting rod capable of being clamped with the through slot is provided in the portal frame.

[0008] Preferably, the driving mechanism includes an opening opened on the upper side of the detection box, and a first bearing coaxial with the rotating porcelain bottle is provided in the opening, and a transmission column is coaxially provided in the first bearing, the upper end of the transmission column is coaxially connected to the rotating porcelain bottle, and the lower end thereof is provided at the bottom of the detection box through a second bearing, and a first bevel gear is sleeved on the transmission column, the first bevel gear is meshed with a second bevel gear, and the second bevel gear is connected to a motor.

[0009] Preferably, a circular ring coaxial with the transmission column is provided in the detection box, a coaxial circular plate is sleeved on the transmission column, the circular plate and the circular ring are staggered up and down, and a fixed ball is provided between the circular plate and the circular ring.

[0010] Preferably, the upper end of the limiting rod passes through the upper end of the portal frame and is provided with a limiting block, a limiting ring is sleeved on the limiting block, and the limiting rod is sleeved with a spring located between the limiting ring and the portal frame.

[0011] Preferably, the upper side of the horizontal rod is arranged in an arc shape.

[0012] The utility model provides a device for detecting the closing position of an isolating switch, which has the following beneficial effects:

[0013] The isolating switch closing position detection device can achieve closing when the controller controls the motor to drive the first bevel gear to rotate until the blocking rod blocks the second photoelectric sensor. However, when the gear deviates after long-term use, the blocking rod blocks the second photoelectric sensor and the rotary switch gate still cannot be successfully closed. If it cannot be closed for a long time, the controller controls the alarm light and connects the power supply to sound an alarm. In order to avoid causing large economic losses and make remedial measures, the motor can continue to drive the rotating porcelain bottle to rotate, so that the horizontal rod blocks the first photoelectric sensor. The controller controls the motor to stop rotating, and at the same time the limit rod can be stuck in the through groove as a horizontal limit, so as to ensure the stability of the closing and buy time for the staff to repair. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] Figure 1 This is a schematic diagram of the structure of the utility model;

[0015] Figure 2 This is a schematic diagram of the front cross-sectional structure of the utility model;

[0016] Figure 3 For this utility model Figure 2 A in the middle is an enlarged structural diagram;

[0017] Figure 4 It is a structural diagram of the portal frame of the present utility model.

[0018] In the figure: 1. Equipment table; 2. Inspection box; 3. Rotating porcelain bottle; 4. Rotary switch gate; 5. Support column; 6. Fixed block; 7. Horizontal rod; 8. Through slot; 9. Door frame; 10. Limit rod; 11. Opening; 12. First bearing; 13. Transmission column; 14. Second bearing; 15. First bevel gear; 16. Second bevel gear; 17. Motor; 18. Ring; 19. Round plate; 20. Fixed ball; 21. Limit block; 22. Limit ring; 23. Spring; 24. First photoelectric sensor; 25. Warning light; 26. Electric telescopic rod; 27. Shielding rod. DETAILED DESCRIPTION

[0019] The present invention will be further described below with reference to specific embodiments. Figures 1 to 4 As shown:

[0020] Example 1: A device for detecting the closing position of an isolating switch, comprising an equipment platform 1 mounted by bolts, a detection box 2 provided on the lower side of the equipment platform 1, a driving mechanism provided in the detection box 2, a driving end of the driving mechanism extending to the upper side of the equipment platform 1, a rotating porcelain bottle 3 coaxial therewith provided, a rotary switch gate 4 provided on the upper end of the rotating porcelain bottle 3, the driving mechanism can drive the rotary switch gate 4 to rotate, thereby completing the work of closing and opening the switch, and support columns 5 fixed to the equipment platform 1 are provided on both sides of the rotating porcelain bottle 3, and the support columns 5 can provide support for both ends of the rotary switch gate 4;

[0021] The outer side of the rotating porcelain bottle 3 is provided with a fixed block 6, and horizontal rods 7 are provided on the four sides of the fixed block 6. The four horizontal rods 7 are distributed in a circle and the spacing between them is equal. A through slot 8 is provided on the horizontal rod 7.

[0022] A gantry 9 with an opening facing the horizontal rod 7 is provided on one side of the two support columns 5 facing the horizontal rod 7. One end of the horizontal rod 7 is located between the upper and lower ends of the gantry 9. A limiting rod 10 capable of engaging with the through slot 8 is provided in the gantry 9. The through slot 8 is also provided on the horizontal rod 7 between the two ends of the gantry 9 and corresponds to the limiting rod 10 in the upper and lower directions, so that the limiting rod 10 is stuck in the through slot 8.

[0023] A first photoelectric sensor 24 is provided on the inner side of the lower end of the gantry 9 and is located right to the limiting rod 10 . When the limiting rod 10 is stuck in the through slot 8 , the horizontal rod 7 just blocks the first photoelectric sensor 24 .

[0024] Example 2: A device for detecting the closing position of an isolating switch, comprising an equipment platform 1 mounted by bolts, a detection box 2 provided on the lower side of the equipment platform 1, a driving mechanism provided in the detection box 2, a driving end of the driving mechanism extending to the upper side of the equipment platform 1, a rotating porcelain bottle 3 coaxial therewith provided, a rotary switch gate 4 provided on the upper end of the rotating porcelain bottle 3, the driving mechanism being able to drive the rotary switch gate 4 to rotate, thereby completing the work of closing and opening the switch, and support columns 5 fixed to the equipment platform 1 are provided on both sides of the rotating porcelain bottle 3, and the support columns 5 can provide support for both ends of the rotary switch gate 4;

[0025] The driving mechanism includes an opening 11 opened on the upper side of the detection box 2, and a first bearing 12 coaxial with the rotating porcelain bottle 3 is provided in the opening 11. A transmission column 13 is coaxially provided in the first bearing 12. Under the cooperation of the opening 11 and the first bearing 12, protection can be provided for the transmission column 13 to prevent it from shaking as much as possible.

[0026] The upper end of the transmission column 13 is coaxially connected to the rotating porcelain bottle 3, and the lower end thereof is arranged at the bottom of the detection box 2 through the second bearing 14. A first bevel gear 15 is sleeved on the transmission column 13, and the first bevel gear 15 is meshed with a second bevel gear 16. The second bevel gear 16 is connected to a motor 17. The motor 17 adopts a servo motor. Under the cooperation of the first bevel gear 15 and the second bevel gear 16, the rotary switch gate 4 can be driven to rotate through the transmission column 13 and the rotating porcelain bottle 3, thereby completing the work of opening and closing the gate;

[0027] Four shielding rods 27 are distributed around the circumference of the first bevel gear 15. A second photoelectric sensor is provided on the left wall of the detection box 2. When the switch is successfully closed or the switch knife is placed on the support column 5 after opening, the second photoelectric sensor can be blocked by one of the shielding rods 27.

[0028] A circular ring 18 coaxial with the transmission column 13 is provided in the detection box 2, and a coaxial circular plate 19 is sleeved on the transmission column 13. The circular plate 19 and the circular ring 18 are staggered up and down, and a fixed ball 20 is provided between the circular plate 19 and the circular ring 18. With the cooperation of the circular ring 18 and the circular plate 19, support can be provided for the transmission column 13 and the rotating porcelain bottle 3. The setting of the fixed ball 20 makes the circular plate 19 rotate more smoothly on the circular ring 18;

[0029] The outer side of the rotating porcelain bottle 3 is provided with a fixed block 6, and horizontal rods 7 are provided on the four sides of the fixed block 6. The four horizontal rods 7 are distributed in a circle and the spacing between them is equal. A through slot 8 is provided on the horizontal rod 7.

[0030] A gantry 9 with an opening facing the horizontal rod 7 is provided on one side of the two support columns 5 facing the horizontal rod 7. One end of the horizontal rod 7 is located between the upper and lower ends of the gantry 9. A limiting rod 10 capable of engaging with the through slot 8 is provided in the gantry 9. The through slot 8 is also provided on the horizontal rod 7 between the two ends of the gantry 9 and corresponds to the limiting rod 10 in the upper and lower directions, so that the limiting rod 10 is stuck in the through slot 8.

[0031] The upper end of the limit rod 10 is connected to the electric telescopic rod 26 through a rope. When the electric telescopic rod 26 is in the original position, the limit rod 10 is lower than the upper side of the horizontal rod 7 and higher than the lower side of the horizontal rod 7;

[0032] The upper end of the limit rod passes through the upper end of the gantry 9 and is provided with a limit block 21, a limit ring 22 is sleeved on the limit block 21, and a spring 23 is sleeved on the limit rod 10 and located between the limit ring 22 and the gantry 9;

[0033] The upper side of the horizontal rod 7 is arranged in an arc shape. When the horizontal rod 7 rotates to between the upper and lower ends of the gantry 9, it can push the limit rod 10 upward, so that the lower end of the limit rod 10 is stuck in the through groove 8, thereby limiting the horizontal rod 7, so that when the disconnector closing position deviates, it can be remedied in time;

[0034] A first photoelectric sensor 24 is provided on the inner side of the lower end of the gantry 9 and is located just to the right of the limit rod 10. When the switch is successfully closed, when the limit rod 10 is stuck in the through slot 8, the horizontal rod 7 just blocks the first photoelectric sensor 24, and an alarm light 25 is provided on the equipment platform 1.

[0035] The above components are all connected to the controller and controlled by the controller.

[0036] Working principle:

[0037] 1. Under the cooperation of the first bevel gear 15 and the second bevel gear 16, the controller controls the motor 17 to drive the first bevel gear 15 to rotate until the blocking rod 27 blocks the second photoelectric sensor, so that it just reaches the closing position. When the motor 17 rotates, it can drive the rotary switch gate 4 to close through the transmission column 13 and the rotating porcelain bottle 3. When the closing is successful, the limit rod 10 is stuck in the through slot 8, blocking the first photoelectric sensor 24;

[0038] 2. When the motor 17 drives the first bevel gear 15 to rotate until the shielding rod 27 shields the second photoelectric sensor, the closing still fails, and the first photoelectric sensor 24 is not blocked by the horizontal rod 7, and the unblocked time exceeds one minute, the controller controls the alarm light 25 to connect the power supply and issue an alarm. At this time, it is detected that the closing position has deviated and needs maintenance. In order to remedy the situation, the controller controls the motor 17 to continue rotating. Due to the arc-shaped upper side of the horizontal rod 7, when the horizontal rod 7 rotates to the limit rod 10, the limit rod 10 can be lifted up, so that when the through slot 8 moves to the bottom of the limit rod 10, the limit rod 10 can be inserted into the through slot 8 to limit the horizontal rod. At the same time, the horizontal rod 7 can shield the first photoelectric sensor 24. The controller controls the motor 17 to stop rotating, so as to facilitate timely remedy and realize the closing operation.

[0039] 3. After the closing is completed, the electric telescopic rod 26 drives the limit rod 10 to move upward through the rope, so that the limit rod 10 disengages from the through slot 8, so that the motor 17 drives the horizontal rod 7 to continue rotating to complete the opening work, and continues to rotate until the next horizontal rod 7 blocks the first photoelectric sensor 24, so that the knife of the rotary switch gate 4 moves to the two support columns 5 to provide support for it.

[0040] The above is only a preferred specific implementation method of the present invention, but the protection scope of the present invention is not limited to this. Any technician familiar with the technical field within the technical scope disclosed by the present invention can make equivalent replacements or changes based on the technical solution and utility model concept of the present invention, which should be covered by the protection scope of the present invention.

Claims

1. A device for detecting the closing position of an isolating switch, comprising a device platform (1) mounted by bolts, a detection box (2) being provided on the lower side of the device platform (1), and characterized in that: The detection box (2) is provided with a driving mechanism, the driving end of the driving mechanism extends to the upper side of the equipment table (1) and is provided with a rotating porcelain bottle (3) coaxial therewith, the upper end of the rotating porcelain bottle (3) is provided with a rotary switch gate (4), and the left and right sides of the rotating porcelain bottle (3) are provided with support columns (5) fixed to the equipment table (1); the outer side of the rotating porcelain bottle (3) is provided with a fixed fixing block (6), and horizontal rods (7) are provided on the four sides of the fixing block (6), and a through slot (8) is opened on the horizontal rod (7); A portal frame (9) with an opening facing the horizontal rod (7) is provided on one side of the two support columns (5) facing the horizontal rod (7), and a limiting rod (10) capable of engaging with the through slot (8) is provided in the portal frame (9).

2. The disconnector closing position detection device according to claim 1, characterized in that: The driving mechanism comprises an opening (11) opened on the upper side of the detection box (2); a first bearing (12) coaxial with the rotating porcelain bottle (3) is provided in the opening (11); a transmission column (13) is coaxially provided in the first bearing (12); the upper end of the transmission column (13) is coaxially connected to the rotating porcelain bottle (3); the lower end of the transmission column (13) is provided on the bottom of the detection box (2) through a second bearing (14); a first bevel gear (15) is sleeved on the transmission column (13); the first bevel gear (15) is meshed with a second bevel gear (16); and the second bevel gear (16) is connected to a motor (17).

3. The disconnector closing position detection device according to claim 2, characterized in that: A circular ring (18) coaxial with the transmission column (13) is provided in the detection box (2); a coaxial circular plate (19) is sleeved on the transmission column (13); the circular plate (19) and the circular ring (18) are arranged in an alternating manner, and a fixed ball (20) is provided between the circular plate (19) and the circular ring (18).

4. The disconnector closing position detection device according to claim 1, characterized in that: The upper end of the limiting rod passes through the upper end of the portal frame (9) and is provided with a limiting block (21), a limiting ring (22) is sleeved on the limiting block (21), and the limiting rod (10) is sleeved with a spring (23) located between the limiting ring (22) and the portal frame (9).

5. The disconnector closing position detection device according to claim 1, characterized in that: The upper side of the horizontal rod (7) is arranged in an arc shape.

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