A ring main unit convenient to maintain

Abstract

The utility model discloses a ring main unit convenient to maintain, its technical scheme main points are: including ring main unit body, the one side of ring main unit body is provided with two box doors, the one side of box door is provided with a plurality of first heat dissipation mouth, the one side of ring main unit body is provided with a plurality of second heat dissipation mouth, through setting mounting panel, when needing the maintenance of electric element on mounting panel, first pull mounting panel outside in the inside of sliding slot, after mounting panel slide outside to the inside of fixed block, will extrude clamping block, make clamping block move to the inside of clamping groove through spring contraction, the connecting rod on clamping block also is retracted to the inside of connecting groove, then can draw mounting panel from the inside of sliding slot, and the electric element on mounting panel is maintained and is viewed, when maintaining, can directly pull out electric element through mounting panel in ring main unit body, and the staff is convenient to the electric element in ring main unit body is maintained and is overhauled fast.

Description

Technical Field

[0001] This utility model relates to the field of ring main unit technology, and specifically to a ring main unit that is easy to maintain. Background Technology

[0002] A ring main unit is an electrical device consisting of a set of high-voltage switchgear installed in a metal or non-metal insulated cabinet or assembled into a ring main power supply unit. Its core components are load switches and fuses. It has the advantages of simple structure, small size, low price, improved power supply parameters and performance, and power supply safety. It is widely used in substations and prefabricated substations in load centers such as urban residential areas, high-rise buildings, large public buildings, and factories.

[0003] For example, Chinese patent CN216794292U proposes a safe ring main unit that is easy to maintain. This patent, through the design of a through groove, sliding rod, end block, top block, top groove, and sealing plate, allows operators to easily clean the transparent casing of the parameter meter by moving the sliding rod back and forth when water vapor or dust appears inside, using a cotton pad on the rod surface. This facilitates easy reading. The design also includes a first side plate, second side plate, bottom plate, motor, connecting block, and scraper. Driven by the motor, the surface of the heat dissipation holes is kept clean, preventing blockages, and the holes also act as insect repellent, preventing insects from entering the cabinet and damaging its internal structure. However, because this solution relies on a motor to maintain the cleanliness of the heat dissipation holes, it hinders internal maintenance. When the ring main unit experiences malfunctions such as tripping or abnormal noises, a power outage is required for maintenance. If repairs are not performed quickly, the power outage will be prolonged, affecting the user's normal power supply. Utility Model Content

[0004] To address the shortcomings of existing technologies, this utility model provides a ring main unit that is easy to maintain. It solves the problem that because the cleanliness of the heat dissipation holes is maintained by a motor drive, it is not convenient to maintain the inside of the ring main unit. When the internal faults of the ring main unit such as tripping or abnormal noise occur, power outages are required for maintenance and repair. If repairs cannot be carried out quickly, the power outage time will be prolonged, affecting the user's normal power supply.

[0005] The above-mentioned technical objective of this utility model is achieved through the following technical solution: A maintenance-friendly ring main unit includes: a ring main unit body, with two doors on one side of the ring main unit body, a plurality of first heat dissipation vents on one side of each door, and a plurality of second heat dissipation vents on one side of the ring main unit body; a bottom plate fixedly installed on the bottom surface of the ring main unit body, and a top plate fixedly installed on the top surface of the ring main unit body; and a maintenance assembly, disposed inside the ring main unit body for convenient maintenance of the ring main unit body, the maintenance assembly including: two support plates, both of which are fixedly installed on the ring main unit body. Inside the cabinet body, a sliding groove is provided on one side of the support plate, and an installation plate is movably fitted inside the sliding groove. Two installation blocks are fixedly installed on one side of the support plate, and two fixing blocks are fixedly installed on one side of the support plate. A slot is provided on one side of the fixing block, and a locking block is movably fitted inside the slot. A connecting rod is fixedly installed on one side of the locking block, and a spring is fixedly installed on one side of the locking block. One end of the spring is fixedly installed to one side of the installation block. A connecting groove is provided on one side of the installation block, and the connecting rod is movably fitted into the connecting groove.

[0006] To prevent the mounting plate from accidentally sliding off the inside of the slide groove, as a ring main unit of this utility model that is easy to maintain, preferably, the top surface of the support plate has a sliding opening, the sliding opening communicates with the inside of the slide groove, and two connecting blocks are fixedly installed on the top surface of the mounting plate, the connecting blocks being movably connected to the sliding opening.

[0007] In order to separate and install the electrical components on the mounting plate, and as a ring main unit of this utility model that is easy to maintain, preferably, the top surface of the mounting plate is provided with a baffle.

[0008] In order to facilitate the disassembly of the baffle, as a ring main unit of this utility model that is easy to maintain, preferably, an installation port is provided on one side of the mounting plate, and a connecting plate is movably sleeved inside the installation port, and the top surface of the connecting plate is fixedly installed with the bottom surface of the baffle.

[0009] In order to connect electrical components, as a ring main unit of this utility model that is easy to maintain, preferably, the top surface of the mounting plate has two wiring ports.

[0010] In order to support the support plate and improve its stability, as a ring main unit of this utility model that is easy to maintain, preferably, two support blocks are fixedly installed on both sides of the ring main unit body, and the top surface of the support blocks is fixedly installed to the bottom surface of the support plate.

[0011] In order to monitor the temperature inside the ring main unit, as a ring main unit of this utility model that is easy to maintain, preferably, a temperature sensor is provided on one side of the inside of the ring main unit.

[0012] In summary, the present invention has the following main advantages: By setting up an installation plate, when maintenance of the electrical components on the installation plate is required, the installation plate is first pulled outward from inside the slide groove. After the installation plate slides outward into the fixed block, it will squeeze the locking block, causing the locking block to retract into the locking groove through the spring. The connecting rod on the locking block also retracts into the connecting groove. Then, the installation plate can be pulled out from inside the slide groove to maintain and inspect the electrical components on the installation plate. During maintenance, the electrical components can be directly pulled out of the ring main unit through the installation plate, which facilitates the staff to quickly maintain and repair the electrical components inside the ring main unit. Attached Figure Description

[0013] Figure 1 This is a three-dimensional structural schematic diagram of the present invention; Figure 2 This is a schematic diagram of the second heat dissipation port structure of this utility model; Figure 3 This is a schematic diagram of the mounting plate structure of this utility model; Figure 4 This is a schematic diagram of the mounting block structure of this utility model; Figure 5 This is a schematic diagram of the temperature sensor structure of this utility model; Figure 6 This is a schematic diagram of the fixing block structure of this utility model.

[0014] Reference numerals in the attached diagram: 1. Ring main unit body; 2. Cabinet door; 3. First heat dissipation vent; 4. Top plate; 5. Bottom plate; 6. Second heat dissipation vent; 7. Support plate; 8. Slide groove; 9. Mounting plate; 10. Connecting block; 11. Wiring port; 12. Sliding port; 13. Mounting block; 14. Connecting groove; 15. Fixing block; 16. Slot; 17. Locking block; 18. Connecting rod; 19. Spring; 20. Mounting port; 21. Connecting plate; 22. Baffle; 23. Support block; 24. Temperature sensor. Detailed Implementation

[0015] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model. Example

[0016] refer to Figure 1 , Figure 2 , Figure 3 , Figure 4 , Figure 5 and Figure 6 A maintenance-friendly ring main unit includes a ring main unit body 1. Two doors 2 are provided on one side of the ring main unit body 1, and several first heat dissipation vents 3 are provided on one side of each door 2. Several second heat dissipation vents 6 are provided on one side of the ring main unit body 1. A bottom plate 5 is fixedly installed on the bottom surface of the ring main unit body 1, and a top plate 4 is fixedly installed on the top surface of the ring main unit body 1. A maintenance component is located inside the ring main unit body 1 for convenient maintenance. The maintenance component includes support plates 7, both of which are fixedly installed inside the ring main unit body 1. A sliding groove 8 is provided on one side of each support plate 7, and an installation plate 9 is movably fitted inside the sliding groove 8. Two installation blocks 13 and two fixing blocks 15 are fixedly installed on one side of each support plate 7. A slot 16 is provided on one side of each fixing block 15, and a locking block 17 is movably fitted inside the slot 16. A connecting rod 18 is fixedly installed on one side of each locking block 17, and a spring 19 is fixedly installed on one side of each locking block 17. One end of the spring 19... The mounting plate 9 is fixedly installed on one side of the mounting block 13. A connecting groove 14 is provided on one side of the mounting block 13. The connecting rod 18 is movably connected to the connecting groove 14. The electrical components inside the ring main unit 1 are installed on the mounting plate 9. When maintenance of the electrical components on the mounting plate 9 is required, the cabinet door 2 is opened first. Then, the mounting plate 9 is pulled outward from inside the slide groove 8. After the mounting plate 9 slides outward into the fixed block 15, it will squeeze the locking block 17, causing the locking block 17 to retract into the locking groove 16 through the spring 19. The connecting rod 18 on the locking block 17 also retracts into the connecting groove 14. Then, the mounting plate 9 can be pulled out from inside the slide groove 8 to maintain and inspect the electrical components on the mounting plate 9. During maintenance, the electrical components can be directly pulled out of the ring main unit 1 through the mounting plate 9 without having to go deep into the narrow space inside the ring main unit 1. This greatly reduces the difficulty of wiring, testing, and replacement during maintenance, and makes it convenient for staff to quickly maintain and repair the electrical components inside the ring main unit 1. Example

[0017] Based on the above embodiment 1, refer to Figure 1 , Figure 2 , Figure 4 , Figure 5 and Figure 6The top surface of the support plate 7 has a sliding opening 12, which communicates with the interior of the slide groove 8. Two connecting blocks 10 are fixedly installed on the top surface of the mounting plate 9. The connecting blocks 10 are movably connected to the sliding opening 12. By setting the connecting blocks 10, when the mounting plate 9 is pulled outward from inside the slide groove 8, the connecting blocks 10 on the mounting plate 9 will slide outward from inside the sliding opening 12. When the connecting blocks 10 slide to the foremost position inside the sliding opening 12, the mounting plate 9 will stop moving outward, preventing the mounting plate 9 from accidentally sliding off from inside the slide groove 8. A baffle 22 is provided on the top surface of the mounting plate 9. By setting the baffle 22, the electrical components on the mounting plate 9 can be installed separately, allowing for quick identification and maintenance of the electrical components on the mounting plate 9. An installation opening 20 is provided on one side of the mounting plate 9. A connecting plate 21 is movably connected inside the installation opening 20. The top surface of the connecting plate 21 is connected to the bottom surface of the baffle 22. The ring main unit is fixedly installed. By setting the connecting plate 21, the connecting plate 21 inside the mounting port 20 can be slidably disengaged from the baffle 22 on the mounting plate 9, making it easy to disassemble the baffle 22 as needed. The top surface of the mounting plate 9 has two wiring ports 11, which facilitate the connection of electrical components. Two support blocks 23 are fixedly installed on both sides of the ring main unit 1. The top surface of the support block 23 is fixedly installed on the bottom surface of the support plate 7. By setting the support block 23, the support block 23 can support the support plate 7, improving the stability of the support plate 7 when the mounting plate 9 is pulled out for inspection and maintenance. A temperature sensor 24 is set on one side of the inside of the ring main unit 1. By setting the temperature sensor 24, the temperature sensor 24 can monitor the temperature inside the ring main unit 1 and issue an alarm in time when the temperature inside the ring main unit 1 is too high.

[0018] Working principle: Please refer to Figures 1-6As shown, by setting the mounting plate 9, the electrical components inside the ring main unit 1 are mounted on the mounting plate 9. When maintenance of the electrical components on the mounting plate 9 is required, first open the cabinet door 2, then pull the mounting plate 9 outward from inside the slide groove 8. After the mounting plate 9 slides outward into the fixed block 15, it will press the locking block 17, causing the locking block 17 to retract and move into the locking groove 16 via the spring 19. The connecting rod 18 on the locking block 17 also retracts into the connecting groove 14. Then the mounting plate 9 can be pulled out from inside the slide groove 8. When the mounting plate 9 is pulled outward from the inside, the connecting block 10 on the mounting plate 9 will slide outward from inside the sliding port 12. When the connecting block 10 slides to the frontmost part inside the sliding port 12, the mounting plate 9 will stop moving outward, preventing the mounting plate 9 from accidentally sliding off from inside the sliding groove 8. During maintenance, electrical components can be directly pulled out of the ring main unit 1 through the mounting plate 9 without having to go deep into the narrow space inside the ring main unit 1. This greatly reduces the difficulty of wiring, testing, and replacement during maintenance, and makes it convenient for staff to quickly maintain and repair the electrical components inside the ring main unit 1.

[0019] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A ring main unit that is easy to maintain, characterized in that, include: The ring main unit (1) has two doors (2) on one side, and several first heat dissipation vents (3) are opened on one side of the door (2). Several second heat dissipation vents (6) are opened on one side of the ring main unit (1). A bottom plate (5) is fixedly installed on the bottom surface of the ring main unit (1), and a top plate (4) is fixedly installed on the top surface of the ring main unit (1). A maintenance component is disposed inside the ring main unit (1) for convenient maintenance of the ring main unit (1). The maintenance component includes: a support plate (7), two support plates (7) are fixedly installed inside the ring main unit (1), a sliding groove (8) is provided on one side of the support plate (7), and an mounting plate (9) is movably sleeved inside the sliding groove (8). Two mounting blocks (13) are fixedly installed on one side of the support plate (7), and a mounting bracket (9) is fixedly installed on one side of the support plate (7). Two fixing blocks (15) are provided. A slot (16) is provided on one side of the fixing block (15). A locking block (17) is movably sleeved inside the slot (16). A connecting rod (18) is fixedly installed on one side of the locking block (17). A spring (19) is fixedly installed on one side of the locking block (17). One end of the spring (19) is fixedly installed on one side of the mounting block (13). A connecting groove (14) is provided on one side of the mounting block (13). The connecting rod (18) is movably sleeved with the connecting groove (14).

2. The ring main unit that is easy to maintain according to claim 1, characterized in that: The top surface of the support plate (7) has a sliding opening (12), which communicates with the inside of the sliding groove (8). Two connecting blocks (10) are fixedly installed on the top surface of the mounting plate (9), and the connecting blocks (10) are movably connected to the sliding opening (12).

3. The ring main unit that is easy to maintain according to claim 1, characterized in that: A baffle (22) is provided on the top surface of the mounting plate (9).

4. The ring main unit that is easy to maintain according to claim 3, characterized in that: The mounting plate (9) has an installation opening (20) on one side, and a connecting plate (21) is movably sleeved inside the mounting opening (20). The top surface of the connecting plate (21) is fixedly installed with the bottom surface of the baffle (22).

5. A ring main unit that is easy to maintain according to claim 1, characterized in that: The mounting plate (9) has two wiring ports (11) on its top surface.

6. A ring main unit that is easy to maintain according to claim 1, characterized in that: Two support blocks (23) are fixedly installed on both sides of the ring main body (1), and the top surface of the support block (23) is fixedly installed with the bottom surface of the support plate (7).

7. A ring main unit that is easy to maintain according to claim 1, characterized in that: A temperature sensor (24) is installed on one side of the inside of the ring main unit (1).

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