Disconnecting switch opening and closing protection device

Abstract

The utility model discloses an opening and closing protection device for an isolating switch, which belongs to the technical field of isolating switch protection and comprises a supporting mechanism, an electromagnetic lock, a square mounting plate, a pin shaft, a compression spring and a separation blade. An electromagnetic lock is installed on the supporting mechanism, the output end of the electromagnetic lock is connected with an installation square plate, and one end of the installation square plate is connected with a blocking piece; a plurality of pin shafts are arranged at one end of the blocking piece, compression springs are arranged on the pin shafts in a sleeved mode, and the upper ends of the pin shafts are movably connected with the installation square plate. The isolating switch can be effectively protected, misoperation of the isolating switch can be effectively prevented during power-on operation, the overall structure is simple, the reliability is good, the product cost is greatly saved, and the safety of personnel operation is improved.

Description

Technical Field

[0001] This utility model belongs to the field of disconnector protection technology, specifically relating to a disconnector opening and closing protection device. Background Technology

[0002] The statements in this section are merely background information related to this utility model and do not necessarily constitute prior art.

[0003] A disconnecting switch is a switching device mainly used for isolating power supplies, switching operations, and connecting or disconnecting circuits with no or low current. In the open state, the contacts of the disconnecting switch have a clear break point, reliably isolating the power supply from the load, ensuring the safety of maintenance personnel by isolating the equipment from live parts during maintenance. When closed, the contacts close, connecting the circuit and allowing current to flow.

[0004] Disconnect switches must be operated without energization because they lack arc-extinguishing capabilities. Operating them while energized could generate an electric arc. This arc can cause electric shock to operators and may lead to serious accidents such as phase-to-phase short circuits and equipment damage. The high temperature of the arc generated during live operation can burn the contacts and other components of the disconnect switch, reducing its lifespan and performance, and even causing equipment failure. Conversely, when energized, maintenance personnel or non-professionals may misoperate the disconnect switch, causing equipment damage and safety accidents. Currently, methods to prevent misoperation of disconnect switches include mechanical interlocking and electrical interlocking. Mechanical interlocking has structural complexity issues, and the reliability of electrical interlocking is difficult to guarantee. Utility Model Content

[0005] To address the aforementioned problems, this utility model provides a disconnect switch opening and closing protection device, which can effectively protect the disconnect switch, prevent maloperation of the disconnect switch during energized operation, has a simple overall structure, high reliability, greatly saves product costs, and improves the safety of personnel operation.

[0006] To achieve the above objectives, the present invention adopts the following technical solution:

[0007] A disconnector switch opening and closing protection device includes a support mechanism, an electromagnetic lock, a mounting plate, pins, a compression spring, and a baffle plate. The electromagnetic lock is mounted on the support mechanism, and its output end is connected to the mounting plate. One end of the mounting plate is connected to the baffle plate. Several pins are provided at one end of the baffle plate, and compression springs are sleeved on the pins. The upper ends of the pins are movably connected to the mounting plate.

[0008] Furthermore, the support mechanism includes a first mounting plate, a second mounting plate, a first horizontal plate, a second horizontal plate, and a third mounting plate, with one end of the first mounting plate connected to one end of the first horizontal plate.

[0009] Furthermore, the other end of the first horizontal plate is connected to one end of the second mounting plate, and the other end of the second mounting plate is connected to one end of the second horizontal plate.

[0010] Furthermore, the other end of the second horizontal plate is connected to one end of the third mounting plate, and threaded holes are provided on both the first mounting plate and the third mounting plate.

[0011] Furthermore, a circular hole is provided on the upper surface of the first horizontal plate, and a square hole is provided at one end of the circular hole.

[0012] Furthermore, the upper surface of the second horizontal plate is provided with a square hole, through which the baffle passes; the upper end of the baffle is fixedly connected to the mounting square plate, and the lower end of the baffle is provided with a semi-circular hole.

[0013] Furthermore, a pin is provided on the second horizontal plate, and the lower end of the pin is connected to the second horizontal plate.

[0014] Furthermore, the upper end of the pin passes through the mounting plate.

[0015] Furthermore, the electromagnetic lock is mounted on the second mounting plate, and the electromagnetic lock and the second mounting plate are detachably connected.

[0016] Furthermore, one end of the compression spring is connected to the mounting square plate, and the other end of the compression spring is connected to the second horizontal plate.

[0017] Compared with the prior art, the advantages and positive effects of this utility model are:

[0018] This utility model includes a support mechanism, an electromagnetic lock, a mounting plate, a pin, a compression spring, and a stop plate. The electromagnetic lock is mounted via the support mechanism. When energized, the electromagnetic lock activates, causing the mounting plate to press down, compressing the spring. The mounting plate then moves the stop plate downwards to the position of the isolating switch, locking it and preventing rotation. This effectively prevents malfunctions of the isolating switch during operation. When de-energized, the electromagnetic lock de-energizes, the spring returns, the mounting plate moves upwards, and the stop plate moves upwards, unlocking the isolating switch. The overall structure is simple; locking or unlocking the isolating switch is achieved simply by turning the electromagnetic lock on and off. It offers high reliability, significantly reduces product costs, and improves operator safety. Attached Figure Description

[0019] The accompanying drawings, which form part of this specification, are used to provide a further understanding of this utility model. The illustrative embodiments of this utility model and their descriptions are used to explain this utility model and do not constitute an improper limitation of this utility model.

[0020] Figure 1This is a structural diagram of the disconnector switch opening and closing protection device of this utility model;

[0021] Figure 2 This is a diagram showing the installation location of the disconnector switch opening and closing protection device of this utility model.

[0022] In the diagram: 1. First mounting plate; 2. First horizontal plate; 3. Second mounting plate; 4. Second horizontal plate; 5. Third mounting plate; 6. Electromagnetic lock; 7. Mounting square plate; 8. Baffle plate; 9. Pin shaft; 10. Compression spring; 11. Cabinet; 12. Disconnecting switch. Detailed Implementation

[0023] It should be noted that the following detailed description is illustrative and intended to provide further explanation of the present invention. Unless otherwise specified, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this invention pertains.

[0024] Disconnect switches must be operated without energization because they lack arc-extinguishing capabilities. Operating them while energized could generate an electric arc. This arc can cause electric shock to operators and may lead to serious accidents such as phase-to-phase short circuits and equipment damage. The high temperature of the arc generated during live operation can burn the contacts and other components of the disconnect switch, reducing its lifespan and performance, and even causing equipment failure. Conversely, when energized, maintenance personnel or non-professionals may misoperate the disconnect switch, causing equipment damage and safety accidents. Currently, methods to prevent misoperation of disconnect switches include mechanical interlocking and electrical interlocking. Mechanical interlocking has structural complexity issues, and the reliability of electrical interlocking is difficult to guarantee.

[0025] The present invention will now be described in detail with reference to the accompanying drawings. This embodiment discloses a 12-way disconnection switch closure protection device, such as... Figure 1 As shown, it includes a support mechanism, an electromagnetic lock 6, a mounting plate 7, pins 9, a compression spring 10, and a baffle plate; the electromagnetic lock 6 is mounted on the support mechanism, the output end of the electromagnetic lock 6 is connected to the mounting plate 7, and one end of the mounting plate 7 is connected to the baffle plate; several pins 9 are provided at one end of the baffle plate, and compression springs 10 are sleeved on the pins 9, and the upper end of the pins 9 is movably connected to the mounting plate 7.

[0026] The electromagnetic lock 6 is installed via a support mechanism. When energized, the electromagnetic lock 6 activates, causing the mounting plate 7 to press down, compressing the compression spring 10. The mounting plate 7 then moves the baffle downwards to the position of the isolating switch 12, locking the isolating switch 12 and preventing it from rotating. This effectively prevents malfunctions of the isolating switch 12 during energized operation. When de-energized, the electromagnetic lock 6 de-energizes, the compression spring 10 rebounds, and the mounting plate 7 moves upwards, causing the baffle to move upwards and unlocking the isolating switch 12. The isolating switch 12 can then be operated. The overall structure is simple, and locking or unlocking the isolating switch 12 can be achieved simply by turning the electromagnetic lock 6 on and off, resulting in high reliability.

[0027] The support mechanism includes a first mounting plate 1, a second mounting plate 3, a first horizontal plate 2, a second horizontal plate 4, and a third mounting plate 5. One end of the first mounting plate 1 is connected to one end of the first horizontal plate 2. The other end of the first horizontal plate 2 is connected to one end of the second mounting plate 3, and the other end of the second mounting plate 3 is connected to one end of the second horizontal plate 4.

[0028] Specifically, the support mechanism includes multiple mounting plates and horizontal plates, through which electromagnetic lock 6 and pin 9 are installed, and the device is installed on cabinet 11.

[0029] like Figure 2 As shown, the other end of the second horizontal plate 4 is connected to one end of the third mounting plate 5. Both the first mounting plate 1 and the third mounting plate 5 are provided with threaded holes. Specifically, during installation, the threaded holes on the first mounting plate 1 and the third mounting plate 5 are aligned with the threaded holes on the cabinet 11, and the bolts are screwed in to connect the protection device to the cabinet 11, thus installing the protection device above the disconnect switch 12.

[0030] A round hole is provided on the upper surface of the first horizontal plate 2, and a square hole is provided at one end of the round hole. The round hole is provided to avoid interference between the bolt and the mounting square plate 7 after the electromagnetic lock is opened, and the square hole is provided as a wiring port for the electromagnetic lock.

[0031] The upper surface of the second horizontal plate 4 is provided with a square hole, through which the baffle 8 passes; the upper end of the baffle 8 is fixedly connected to the mounting square plate 7, and the lower end of the baffle 8 is provided with a semi-circular hole.

[0032] Specifically, the square hole on the second horizontal plate 4 is used to allow the baffle 8 to move up and down. When the mounting square plate 7 moves up and down driven by the electromagnetic lock 6, the baffle 8 moves within the square hole, thereby approaching or moving away from the disconnect switch 12, and protecting the disconnect switch 12 when energized.

[0033] A pin 9 is installed on the second horizontal plate 4, with its lower end connected to the second horizontal plate 4. The upper end of the pin 9 passes through the mounting square plate 7. One end of the compression spring 10 is connected to the mounting square plate 7, and the other end of the compression spring 10 is connected to the second horizontal plate 4.

[0034] Specifically, two pins 9 are provided, and each pin 9 is fitted with a compression spring 10. When the electromagnetic lock 6 is energized, the compression spring 10 is compressed, and when the electromagnetic lock 6 is de-energized, the compression spring 10 returns to its original position.

[0035] The electromagnetic lock 6 is mounted on the second mounting plate 3, and the electromagnetic lock 6 and the second mounting plate 3 are detachably connected. The electromagnetic lock 6 can be removed and replaced if it is damaged.

[0036] Specifically, the circuit of the electromagnetic lock 6 is electrically connected to the circuit inside the cabinet 11. When the cabinet 11 is powered on, the electromagnetic lock 6 is powered on, and when the cabinet 11 is powered off, the electromagnetic lock 6 is powered off, thereby linking the electromagnetic lock 6 and the circuit of the cabinet 11, and automatically locking the isolating switch 12 when powered on.

[0037] Electromagnetic lock 6 is existing technology, a device that uses electromagnetic principles to achieve locking and unlocking functions. It controls the extension and retraction of the bolt through electromagnetic force, allowing control of the bolt's extension and retraction when power is applied or removed. The bolt is connected to the mounting plate 7, which moves the stop plate 8, thereby protecting the isolating switch 12.

[0038] How to use the disconnect switch opening and closing protection device:

[0039] When the line is energized, the electromagnetic lock 6 is powered on, and its output end descends, which in turn drives the mounting plate 7 to descend. The mounting plate 7 then drives the baffle 8 to descend, and the semi-circular hole of the baffle 8 presses against the upper end of the disconnect switch 12, preventing the disconnect switch 12 from rotating. At this time, the compression spring 10 is in a compressed state. When the line is de-energized, the electromagnetic lock 6 is de-energized, and its output end moves upward, which in turn drives the mounting plate 7 to move upward. The mounting plate 7 then drives the baffle 8 to move upward, causing the semi-circular hole of the baffle 8 to separate from the disconnect switch 12, allowing the disconnect switch 12 to rotate. At this time, the compression spring 10 rebounds. Ultimately, this achieves protection for the disconnect switch 12 when the line is energized, preventing the disconnect switch 12 from being used when the line is energized, and allowing the disconnect switch 12 to be used when the line is de-energized.

[0040] Although the specific embodiments of the present utility model have been described above in conjunction with the accompanying drawings, this is not intended to limit the scope of protection of the present utility model. Those skilled in the art should understand that various modifications or variations that can be made by those skilled in the art without creative effort based on the technical solution of the present utility model are still within the scope of protection of the present utility model.

Claims

1. A disconnector switch opening and closing protection device, characterized in that, It includes a support mechanism, an electromagnetic lock, a mounting plate, pins, a compression spring, and a baffle plate; the electromagnetic lock is mounted on the support mechanism, the output end of the electromagnetic lock is connected to the mounting plate, and one end of the mounting plate is connected to the baffle plate; one end of the baffle plate is provided with several pins, and a compression spring is sleeved on the pins, and the upper end of the pins is movably connected to the mounting plate.

2. The disconnector switch opening and closing protection device as described in claim 1, characterized in that, The support mechanism includes a first mounting plate, a second mounting plate, a first horizontal plate, a second horizontal plate, and a third mounting plate, with one end of the first mounting plate connected to one end of the first horizontal plate.

3. The disconnector switch opening and closing protection device as described in claim 2, characterized in that, The other end of the first horizontal plate is connected to one end of the second mounting plate, and the other end of the second mounting plate is connected to one end of the second horizontal plate.

4. The disconnector switch opening and closing protection device as described in claim 3, characterized in that, The other end of the second horizontal plate is connected to one end of the third mounting plate, and threaded holes are provided on both the first mounting plate and the third mounting plate.

5. The disconnector switch opening and closing protection device as described in claim 4, characterized in that, A circular hole is provided on the upper surface of the first horizontal plate, and a square hole is provided at one end of the circular hole.

6. The disconnector switch opening and closing protection device as described in claim 4, characterized in that, The upper surface of the second horizontal plate is provided with a square hole, through which the baffle passes; the upper end of the baffle is fixedly connected to the mounting square plate, and the lower end of the baffle is provided with a semi-circular hole.

7. The disconnector switch opening and closing protection device as described in claim 4, characterized in that, A pin is provided on the second horizontal plate, and the lower end of the pin is connected to the second horizontal plate.

8. The disconnector switch opening and closing protection device as described in claim 7, characterized in that, The upper end of the pin passes through the mounting plate.

9. The disconnector switch opening and closing protection device as described in claim 1, characterized in that, The electromagnetic lock is mounted on the second mounting plate, and the electromagnetic lock and the second mounting plate are detachably connected.

10. The disconnector switch opening and closing protection device as described in claim 1, characterized in that, One end of the compression spring is connected to the mounting square plate, and the other end of the compression spring is connected to the second horizontal plate.

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