Ww box type environment-friendly insulation ring main unit

Abstract

This utility model provides a VVV common-enclosure type environmentally friendly insulated ring main unit, including a base, a cabinet body on the top of the base, two cabinet doors hinged to the front of the cabinet body, each with a handle, and two parallel guide rails located inside the cabinet body on the top of the base. A reserved area is provided next to each guide rail, with a movable component within the reserved area. A movable rod is located within the movable component, and the movable rod is movably connected to an extension frame. Two parallel connecting rails are connected to the extension frame, and two parallel connecting rails are intersected by the two guide rails. The ring main unit is located above the guide rails, and casters are located at the four corners of the bottom of the ring main unit. The casters can roll on the connecting rails, parallel connecting rails, and guide rails. When installing the ring main unit, the casters are pushed into the connecting rails until it reaches the predetermined position, and then the ring main unit is moved laterally onto the guide rails via the parallel connecting rails. This ensures that the arranged ring main units are always within the guide rail range, forming a neat and uniform layout, facilitating daily maintenance and operation.

Description

Technical Field

[0001] This utility model relates to the field of ring main units, and more particularly to VVV common-enclosure type environmentally friendly insulated ring main units. Background Technology

[0002] A ring main unit (RMU) is an electrical device specifically designed for ring network power supply systems. It integrates high-voltage switchgear within a metal cabinet or assembles it into compartmentalized ring network power supply units. The core components of this equipment mainly consist of load switches and fuses. Their combined action gives the RMU advantages such as simple structure, small size, low cost, improved power supply parameters and performance, and enhanced power supply safety. The design of the RMU aims to improve power supply reliability, allowing users to obtain power from two directions, thus ensuring residents' daily power needs are met even in the event of a power failure.

[0003] A Chinese patent document CN201922364602.6 discloses an easy-to-install ring main unit, comprising a cabinet body with hinged doors on both sides of the cabinet body. An upper baffle is fitted onto the top of the middle section of the inner wall of the cabinet, and a lower baffle is fitted onto the bottom of the middle section of the inner wall. The upper baffle is fixedly connected to the inner wall of the cabinet via a fixed shaft. A connecting plate is installed at the bottom of the upper baffle. A support pad is installed at the bottom of the cabinet interior. Sliding rollers are symmetrically and evenly embedded on both sides of the top surface of the support pad. When installing electrical equipment, the upper and lower baffles are twisted at the fixed shaft, and the connecting plate is removed to separate the upper and lower baffles, opening the middle section of the cabinet interior. The sliding rollers at the support pad then support the electrical equipment, facilitating the overall installation and disassembly of larger electrical equipment within the ring main unit.

[0004] However, the above-mentioned patent has certain drawbacks in use. Since the ring main unit needs to be installed inside the cabinet, although the installation of the ring main unit is facilitated by the sliding connecting plate, the operating space is limited when installing larger ring main units. When multiple ring main units are arranged side by side, it is time-consuming and laborious to move and align multiple ring main units.

[0005] Therefore, the VVV common-enclosure type environmentally friendly insulated ring main unit is proposed here to solve the above-mentioned problems. Utility Model Content

[0006] To overcome the shortcomings of existing technologies where large ring main units are inconvenient to align during installation, resulting in time and labor consumption, this utility model provides a VVV common-enclosure type environmentally friendly insulated ring main unit.

[0007] This utility model is achieved using the following technical solution:

[0008] VVV common-enclosure type environmentally friendly insulated ring main unit includes a base, a cabinet body is provided on the top of the base, two cabinet doors are hinged to the front of the cabinet body, and the cabinet doors are provided with door handles. Two parallel guide rails are provided on the top of the base inside the cabinet body, and a reserved area is provided on one side of the two guide rails. The reserved area is provided with a movable part, and a movable rod is provided inside the movable part. The movable rod is movably connected to an extension frame. Two parallel connecting rails are connected to the extension frame. Two parallel connecting rails are provided at the intersection of the two connecting rails, and the two parallel connecting rails are connected to the two guide rails.

[0009] A ring main unit is provided above the guide rail, and casters are provided at the four corners of the bottom of the ring main unit. The casters can roll on the connecting rail, parallel rail, and guide rail.

[0010] As a preferred embodiment of this utility model, the contact portion between the extension frame and the two connecting rails is provided with multiple return springs, and the ends of the multiple return springs are provided with baffles.

[0011] As a preferred embodiment of this utility model, the intersection of the two connecting rails and the two parallel rails is provided with an active area that can be used for the steering of the omnidirectional wheel.

[0012] As a preferred embodiment of this utility model, an installation plate is provided above the reserved area. The installation plate is located on the side wall of the cabinet body. The installation plate is provided with two clamping arms for fixing and connecting to the rail. The inner walls of the two clamping arms are provided with locking protrusions.

[0013] As a preferred embodiment of this utility model, multiple ring main units are provided close to each other, and each of the multiple ring main units has a reserved opening on both sides of its side wall, and a dustproof grille can be detachably installed in the reserved opening.

[0014] As a preferred embodiment of this utility model, each of the ring main units has a hinged door on its front side, and a handle is provided above the door, and the handle is fixed to the side wall of the ring main unit.

[0015] As a preferred embodiment of this utility model, the cabinet body has multiple through-flow channels on both sides.

[0016] As a preferred embodiment of this utility model, each of the two guide rails is provided with a limiting block at its end.

[0017] Compared with existing technologies, the advantages of this utility model are:

[0018] 1. When installing the ring main unit, open the cabinet door using the handle, and push the casters at the bottom of the ring main unit into the connecting rail using the handle. When the casters reach the stop plate position, the elasticity of the return spring can easily align the ring main unit to the predetermined position. Then, the casters adjust their direction in the moving area, and then push the ring main unit into the guide rail along the casters. Multiple ring main units can then be installed in sequence to achieve precise alignment. The precise cooperation between the connecting rail and the guide rail ensures accurate installation of the ring main unit, and alignment can be completed without manually moving the ring main unit.

[0019] 2. The installation process is greatly simplified by using guide rails, connecting rails, and parallel connecting rails. After multiple ring main units are installed close together, the dustproof grilles on the side walls of adjacent ring main units can be removed to facilitate circuit connection between ring main units, making daily maintenance and repair easier. At the same time, the cabinet body can be reused, and the ring main units are pushed into the cabinet body by universal wheels, which improves equipment utilization and achieves environmental protection.

[0020] 3. The extension frame can rotate under the action of the movable rod. When the ring main unit is not required, it can be fixed in the clamping arm to save internal space. Attached Figure Description

[0021] Figure 1 This is an overall structural diagram of the present invention;

[0022] Figure 2 This is a utility model and a display diagram showing its storage functionality;

[0023] Figure 3 This is a structural diagram of the connecting rail of this utility model;

[0024] Figure 4 This is a structural diagram of the ring main unit of this utility model;

[0025] Figure 5 This is a diagram of the internal structure of the cabinet body of this utility model;

[0026] Figure 6 This is a structural diagram of the clamping arm of this utility model;

[0027] In the diagram: 1. Cabinet body; 11. Base; 12. Ventilation door; 13. Cabinet door; 14. Door handle; 2. Guide rail; 21. Limiting block; 3. Reserved area; 4. Moving parts; 41. Moving rod; 42. Extension frame; 43. Connecting rail; 44. Parallel rail; 45. Moving area; 5. Clamping arm; 51. Locking protrusion; 52. Mounting plate; 6. Ring main unit; 61. Handle; 62. Storage door; 63. Reserved opening; 64. Dustproof grille; 65. Casters; 7. Return spring; 71. Baffle plate. Detailed Implementation

[0028] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present utility model. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. All other embodiments obtained by those skilled in the art based on the embodiments of the present utility model without creative effort are within the protection scope of the present utility model.

[0029] Example:

[0030] Please see Figures 1-6 The VVV common-box type environmentally friendly insulated ring main unit includes a base 11, a cabinet body 1 on the top of the base 11, two cabinet doors 13 hinged to the front of the cabinet body 1, and door handles 14 on the cabinet doors 13. Two parallel guide rails 2 are provided inside the cabinet body 1 at the top of the base 11. A reserved area 3 is provided on one side of the two guide rails 2. A movable part 4 is provided in the reserved area 3. A movable rod 41 is provided in the movable part 4. An extension frame 42 is movably connected to the movable rod 41. Two parallel connecting rails 43 are connected to the extension frame 42. Two parallel connecting rails 44 are provided at the intersection of the two connecting rails 43, and the two parallel connecting rails 44 are connected to the two guide rails 2.

[0031] A ring network cabinet 6 is provided above the guide rail 2. The four corners of the bottom of the ring network cabinet 6 are provided with casters 65. The casters 65 can roll on the connecting rail 43, the parallel rail 44, and the guide rail 2.

[0032] In this embodiment, a cabinet body 1 is provided on the top of the base 11. Two cabinet doors 13 are hinged to the front of the cabinet body 1. The cabinet doors 13 are provided with door handles 14 for easy opening and closing. Two parallel guide rails 2 are provided inside the cabinet body 1. The guide rails 2 are located on the top of the base 11. A reserved area 3 is provided on one side of the two guide rails 2. A movable part 4 is provided in the reserved area 3. A movable rod 41 is embedded in the movable part 4. A rotatable extension frame 42 is connected to the movable rod 41. Two parallel connecting rails 43 are provided on the extension frame 42. The connecting rails 43 cover the entire movable area 45. Two parallel rails 44 are arranged at the intersection of the two connecting rails. The two parallel rails 44 are connected to the two guide rails 2 to form a complete moving line. A ring network cabinet 6 is provided above the guide rails 2. Universal wheels 65 are provided at the four corners of the bottom of the ring network cabinet 6. The universal wheels 65 can roll flexibly on the connecting rails 43, parallel rails 44 and guide rails 2, which facilitates the movement and positioning of the ring network cabinet 6 and ensures convenient and efficient operation.

[0033] Specifically, the extension frame 42 is provided with multiple return springs 7 at the contact points with the two connecting rails 43, and the ends of the multiple return springs 7 are provided with baffles 71.

[0034] In this embodiment, multiple return springs 7 are provided at the contact points between the ends of the two connecting rails 43 and the extension frame 42. The multiple return springs 7 are connected to a stop plate 71. There are two stop plates 71 in total. The stop plates 71 are located at the ends of the connecting rails 43. When the caster wheel 65 rolls to the end in the track, the return spring 7 is automatically compressed, and the stop plate 71 pops out, effectively preventing the ring main unit 6 from sliding out of the connecting rails 43.

[0035] Specifically, the two connecting rails 43 and the two parallel rails 44 intersect at an active area 45 that can be used for the omnidirectional wheel 65 to turn.

[0036] In this embodiment, an active area 45 is provided at the intersection of the connecting rail 43 and the parallel connecting rail 44. When the universal wheel 65 reaches the corresponding active area 45, the ring main unit 6 has entered the cabinet body 1. Through the space of the active area 45, the universal wheel 65 rotates 90 degrees to realize the lateral movement of the ring main unit 6 in the cabinet body, and continues to move along the parallel connecting rail 44 to the end of the guide rail 2.

[0037] Specifically, an installation plate 52 is provided above the reserved area 3. The installation plate 52 is located on the side wall of the cabinet body 1. The installation plate 52 is provided with two clamping arms 5 for fixing and connecting the rail 44. The inner walls of the two clamping arms 5 are provided with locking protrusions 51.

[0038] In this embodiment, the inner wall of the cabinet body 1 is provided with a mounting plate 52, which is located directly above the active area 45. The mounting plate 52 is provided with two clamping arms 5, and the inner side of the two clamping arms 5 is provided with a locking protrusion 51. The extension frame 42 rotates on the movable rod 41, which drives the connecting rail and the parallel connecting rail 44. When rotated to the vertical position, one of the parallel connecting rails 44 is locked into the locking protrusion 51 between the two clamping arms 5. The ring network cabinet 6 does not need to be installed or disassembled. The parallel connecting rail 44 is locked into the clamping arm 5 in the above manner, saving the internal space of the cabinet body 1.

[0039] Specifically, multiple ring main units 6 are closely attached to each other, and each of the multiple ring main units 6 has a reserved opening 63 on both side walls. A dustproof grille 64 can be detachably installed in the reserved opening 63.

[0040] In this embodiment, multiple ring main units 6 are provided. The multiple ring main units 6 are installed in the guide rail 2 through connecting rail 43 and parallel connecting rail 44 to form a dense arrangement, which facilitates centralized management and maintenance. Reserved openings 63 are provided on both side walls of the multiple ring main units 6. Dustproof grilles 64 are detachably installed in the reserved openings 63. The dustproof grilles 64 can effectively block dust from entering and ensure the cleanliness of the inside of the ring main unit 6. The dustproof grilles 64 can be removed between two adjacent ring main units 6 to form a channel, which facilitates the interconnection of electrical equipment inside the ring main unit 6.

[0041] Specifically, each of the ring main units 6 has a door 62 hinged to its front, and a handle 61 is provided above the door 62, and the handle 61 is fixed to the side wall of the ring main unit 6.

[0042] In this embodiment, multiple ring main units 6 have hinged doors 62 on their main doors. Each ring main unit 6 has a handle 61 on its main door. The handle 61 is made of insulating material and makes it convenient for operators to install the ring main unit 6.

[0043] Specifically, multiple ventilation doors 12 are provided on both sides of the cabinet body 1.

[0044] In this embodiment, the cabinet body 1 is provided with multiple ventilation doors 12 on both sides for ventilation and heat dissipation.

[0045] Specifically, each of the two guide rails 2 is provided with a limiting block 21 at its end.

[0046] In this embodiment, the ends of the two guide rails 2 are provided with limiting blocks 21 to prevent the ring main unit 6 from exceeding the range of the guide rails 2 during movement.

[0047] The principle of this utility model is as follows: When the ring main unit 6 needs to be installed, the cabinet door 13 is opened by the door handle 14, and the ring main unit 6 is pushed into the two connecting rails 43 in the reserved area 3. After reaching the designated position, the universal wheel 65 turns in the moving area 45, and then continues to be pushed in along the parallel connecting rail 44 to the end of the guide rail 2. After the first ring main unit 6 reaches the position of the limit block 21, the remaining ring main units 6 are then installed in sequence to ensure that the arranged ring main units 6 are always within the range of the guide rail 2, forming a neat and uniform layout, which is convenient for daily maintenance and operation.

[0048] The above description is only a preferred embodiment of the present utility model, but the protection scope of the present utility model is not limited thereto. Any equivalent substitutions or changes made by those skilled in the art within the technical scope disclosed in the present utility model based on the technical solution and its improved concept should be covered within the protection scope of the present utility model.

Claims

1. A VVV common-enclosure type environmentally friendly insulated ring main unit, comprising a base (11), wherein a cabinet body (1) is provided on the top of the base (11), and two cabinet doors (13) are hinged to the front of the cabinet body (1), and door handles (14) are provided on the cabinet doors (13), characterized in that: The top of the base (11) is located inside the cabinet body (1) and has two parallel guide rails (2). A reserved area (3) is provided on one side of the two guide rails (2). The reserved area (3) has a movable part (4). The movable part (4) has a movable rod (41). The movable rod (41) is movably connected to an extension frame (42). Two parallel connecting rails (43) are connected to the extension frame (42). The two connecting rails (43) are intersected by two parallel rails (44), and the two parallel rails (44) are connected to the two guide rails (2). A ring network cabinet (6) is provided above the guide rail (2). The four corners of the bottom of the ring network cabinet (6) are provided with casters (65). The casters (65) can roll on the connecting rail (43), the parallel rail (44), and the guide rail (2).

2. The VVV enclosed-type environmentally-friendly insulated ring main unit according to claim 1, characterized in that: The extension frame (42) is provided with multiple return springs (7) at the contact points with the two connecting rails (43), and the ends of the multiple return springs (7) are provided with baffles (71).

3. The VVV enclosed-type environmentally-friendly insulated ring main unit according to claim 2, characterized in that: The two connecting rails (43) and the two parallel rails (44) intersect at an active area (45) that can be used for steering of the caster wheel (65).

4. The VVV enclosed-type environmentally-friendly insulated ring main unit according to claim 1, characterized in that: An installation plate (52) is provided above the reserved area (3). The installation plate (52) is located on the side wall of the cabinet body (1). The installation plate (52) is provided with two clamping arms (5) for fixing and connecting the rail (44). The inner walls of the two clamping arms (5) are provided with locking protrusions (51).

5. The VVV enclosed-type environmentally-friendly insulated ring main unit according to claim 1, characterized in that: Multiple ring main units (6) are closely attached to each other, and each ring main unit (6) has a reserved opening (63) on both sides. A dustproof grille (64) can be detachably installed in the reserved opening (63).

6. The VVV enclosed-type environmentally-friendly insulated ring main unit according to claim 5, characterized in that: Each of the ring main units (6) has a door (62) hinged to its front. A handle (61) is provided above the door (62), and the handle (61) is fixed to the side wall of the ring main unit (6).

7. The VVV enclosed-type environmentally-friendly insulated ring main unit according to claim 1, characterized in that: The cabinet body (1) has multiple ventilation doors (12) on both sides.

8. The VVV enclosed-type environmentally-friendly insulated ring main unit according to claim 1, characterized in that: Both guide rails (2) are provided with limiting blocks (21) at their ends.

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