Ring main unit structure convenient to overhaul
By designing a fixing mechanism in the ring main unit and utilizing the interlocking structure of limit blocks and limit grooves, the problem of bolt loosening affecting maintenance efficiency is solved, and convenient connection and separation operations between the door panel and the cabinet are realized.
Patent Information
- Application Number
- CN202520307607.8
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-02-25
- Publication Date
- 2026-01-16
- Estimated Expiration
- 2035-02-25
AI Technical Summary
During the maintenance of existing ring main units, the lack of a fixing structure between the through bolts and the door panel leads to bolt detachment, affecting maintenance efficiency.
A fixing mechanism was designed, including a fixing base, an anti-detachment component, and a fixing component. Through the interlocking structure of the limiting block and the limiting groove, the threaded column and the door panel are always kept connected, preventing the bolts from falling off.
It improves the maintenance efficiency of ring main units, making the installation and disassembly of doors and cabinets more convenient and not affecting normal operation.
Smart Images

Figure CN223809459U_ABST
Abstract
Description
TECHNICAL FIELD
[0001] The utility model belongs to the technical field of ring main unit, concretely relates to a ring main unit structure convenient to overhaul. BACKGROUND
[0002] The ring main unit is a group of power transmission and distribution electrical equipment, which is installed in a metal or non-metal insulation cabinet or made into a power supply unit of assembled interval type ring network, the core part of which adopts load switch and fuse, and has the advantages of simple structure, small size, low price, improved power supply parameters and performance, power supply safety and the like, and is widely used in power distribution stations and box-type substation of load centers of urban residential areas, high-rise buildings, large public buildings, factories and enterprises.
[0003] The existing ring main unit has the problem that the fixing between the door plate and the cabinet body by the penetrating bolt reduces the efficiency of overhaul, and therefore the utility model provides a ring main unit structure convenient to overhaul. UTILITY MODEL CONTENTS
[0004] The utility model discloses a ring main unit structure convenient to overhaul, which solves the problem that the fixing between the door plate and the cabinet body by the penetrating bolt reduces the efficiency of overhaul.
[0005] To achieve the above object, the utility model provides the following technical scheme: a ring main unit structure convenient to overhaul, which comprises a cabinet body, a plurality of function rooms are arranged in the interior of the cabinet body, a door plate is arranged on the surface of the cabinet body and located at the front side of the plurality of function rooms, a hinge is arranged at the connection between one side of the door plate and the cabinet body, a fixing mechanism is arranged at the connection between the other side of the door plate and the cabinet body, the fixing mechanism comprises a fixing seat, an anti-dropping assembly and a fixing assembly, the fixing seat is arranged on the surface of the door plate, the fixing assembly comprises a mounting groove and a threaded column, the mounting groove is arranged on the surface of the cabinet body and the inner side of the door plate, the anti-dropping assembly comprises a limiting block and a limiting groove, the limiting groove is arranged on the inner side of the door plate, and the limiting block is sleeved on the inner side of the threaded column and in the clamping state with the limiting groove.
[0006] Preferably, the end surface of the threaded column is in threaded connection with the inner wall of the mounting groove.
[0007] Preferably, the limiting block is a hollow cylindrical structure, and the outer diameter of the limiting block is consistent with the inner diameter of the limiting groove.
[0008] Preferably, the threaded post has a cylindrical structure.
[0009] Preferably, the outer surface of the fixing base has an uneven structure, and the fixing base has a cylindrical structure.
[0010] Preferably, a sealing assembly is provided between the door panel and the cabinet body. The sealing assembly consists of a sealing block and a fixing groove. The fixing groove is opened on the inner side of the door panel, and the sealing block is disposed between the door panel and the cabinet body. The bottom end of the sealing block is engaged and fixed with the fixing groove.
[0011] Preferably, the plurality of functional compartments consist of a busbar compartment, a load switch compartment, and a combined electrical unit compartment, which are distributed and arranged on the inner side of the cabinet.
[0012] Compared with the prior art, the beneficial effects of this utility model are:
[0013] By designing a fixing mechanism, the previous problem of bolts running through the door panel and cabinet interior falling off during maintenance of the ring main unit was improved. This was because the bolts lacked a connection to the door panel, causing inconvenience during subsequent installation and affecting maintenance efficiency. The new fixing mechanism secures the door panel and cabinet together. When the door panel and cabinet need to be separated for maintenance, the fixing base, threaded post, and door panel remain disconnected, making subsequent installation more convenient and not affecting normal disassembly and assembly operations. Attached Figure Description
[0014] Figure 1 This is a schematic diagram of the structure of this utility model;
[0015] Figure 2 This utility model Figure 1 Enlarged schematic diagram of region A in the image;
[0016] Figure 3 This is a cross-sectional view of the cabinet and door panel installation area of this utility model;
[0017] Figure 4 This utility model Figure 2 Enlarged schematic diagram of region B in the diagram;
[0018] In the diagram: 1. Cabinet body; 2. Door panel; 3. Fixing mechanism; 31. Fixing base; 32. Anti-detachment component; 321. Limiting block; 322. Limiting groove; 33. Fixing component; 331. Mounting groove; 332. Threaded column; 34. Sealing component; 341. Sealing block; 342. Fixing groove. Detailed Implementation
[0019] Clearly, the described embodiments are merely a part of the embodiments of the present application, rather than all the embodiments. Based on the embodiments of the present application, all other embodiments obtained by those skilled in the art without creative labor fall within the scope of protection of the present application.
[0020] Please refer to Figures 1 to 4 The utility model provides a kind of technical scheme: a kind of looped network cabinet structure convenient for overhaul, including cabinet 1, the inside of cabinet 1 is provided with multiple function cubicles, the surface of cabinet 1 and located the front side of multiple function cubicles is provided with door panel 2, the connecting place of one side of door panel 2 and cabinet 1 is equipped with hinge, the connecting place of the other side of door panel 2 and cabinet 1 is equipped with fixed mechanism 3, through the fixed mechanism 3 of design, door panel 2 and cabinet 1 are installed between fixed mechanism 3, fixed mechanism 3 is composed of fixed seat 31, anti-drop component 32, fixed component 33, fixed seat 31 is set on the surface of door panel 2, fixed component 33 is composed of installation groove 331, threaded column 332, installation groove 331 is all opened in the surface of cabinet 1, the inside of door panel 2, anti-drop component 32 is composed of limiting block 321, limiting groove 322, through anti-drop component 32, threaded column 332 and door panel 2 are always in connection state through anti-drop component 32 in the installation and separation process of door panel 2 and cabinet 1, limiting groove 322 is opened in the inside of door panel 2, limiting block 321 is sheathed in the inside of threaded column 332 and is in the state of clamping with limiting groove 322, through the fixed mechanism 3 of design, improve the original looped network cabinet in the process of overhaul when using, when bolt that penetrates in the inside of door panel 2 and cabinet 1 is disassembled, because there is no connecting structure between bolt and door panel 2, bolt falls off, cause subsequent installation to door panel 2 and cabinet 1, there is certain inconvenience, to affect the overhaul efficiency problem, by setting fixed mechanism 3 between door panel 2 and cabinet 1, the two are fixed by fixed mechanism 3, when door panel 2 and cabinet 1 are separated due to the need of looped network cabinet overhaul, fixed seat 31, threaded column 332 and door panel 2 are still in connection state, so that subsequent installation process is more convenient, and normal dismounting operation is not affected, the end surface of threaded column 332 and the inner wall of installation groove 331 are screw connections, limiting block 321 is hollow cylindrical structure, the outer diameter size of limiting block 321 is consistent with the inner diameter size of limiting groove 322, threaded column 332 is cylindrical structure, the outer surface of fixed seat 31 is uneven structure, fixed seat 31 is cylindrical structure, multiple function cubicles are composed of busbar room, load switch room, combined electrical unit room, busbar room, load switch room, combined electrical unit room are distributed and set in the inside of cabinet 1.
[0021] In the embodiment, preferably, the sealing assembly 34 is arranged between the door plate 2 and the cabinet body 1, the sealing assembly 34 is composed of a sealing block 341 and a fixing groove 342, the fixing groove 342 is arranged on the inner side of the door plate 2, the sealing assembly 34 increases the sealing property between the cabinet body 1 and the door plate 2, the sealing block 341 is arranged between the door plate 2 and the cabinet body 1, the bottom end of the sealing block 341 is clamped and fixed with the fixing groove 342, the clamping and fixing of the sealing block 341 and the fixing groove 342 increases the fixing stability of the sealing block 341.
[0022] The working principle and use process of the utility model are as follows: in the operation process of the ring main unit, the busbar chamber is used for installing busbars, providing a channel for power transmission, the load switch chamber is used for installing load switches, grounding switches and other equipment, realizing circuit closing, opening and grounding operation; in the maintenance process of the ring main unit, when the door plate 2 needs to be separated from the cabinet body 1, the fixed seat 31 is rotated, the threaded column 332 is driven to rotate in the inside of the installation groove 331 through the fixed seat 31, in the threaded rotating process of the threaded column 332 and the installation groove 331, the threaded column 332 moves in the inside of the installation groove 331, when the two move, the limiting block 321 slides in the inside of the limiting groove 322, the threaded column 332 is limited, when the door plate 2 is separated from the cabinet body 1, the threaded column 332 is still connected with the door plate 2.
[0023] Although the embodiments of the utility model have been shown and described, it can be understood by those skilled in the art that various changes, modifications, replacements and modifications can be made to the embodiments without departing from the principles and spirits of the utility model, the scope of the utility model is defined by the appended claims and their equivalents.
Claims
1. A ring main unit structure convenient for maintenance, comprising a cabinet body (1), the inside of the cabinet body (1) is provided with a plurality of function compartments, characterized in that: The surface of the cabinet (1) and the front side of the plurality of function small rooms are provided with door plates (2), one side of the door plate (2) is provided with a hinge at the connection with the cabinet (1), and the other side of the door plate (2) is provided with a fixing mechanism (3) at the connection with the cabinet (1), the fixing mechanism (3) is composed of a fixing seat (31), an anti-dropping assembly (32) and a fixing assembly (33), the fixing seat (31) is arranged on the surface of the door plate (2), the fixing assembly (33) is composed of a mounting groove (331) and a threaded column (332), the mounting groove (331) is arranged on the surface of the cabinet (1) and the inner side of the door plate (2), the anti-dropping assembly (32) is composed of a limiting block (321) and a limiting groove (322), the limiting groove (322) is arranged on the inner side of the door plate (2), and the limiting block (321) is sleeved on the inner side of the threaded column (332) and is in a clamping state with the limiting groove (322).
2. The ring main unit structure convenient to overhaul according to claim 1, characterized in that: The end surface of the threaded column (332) is in threaded connection with the inner wall of the mounting groove (331).
3. The ring main unit structure convenient to overhaul according to claim 1, characterized in that: The limiting block (321) is a hollow cylindrical structure, and the outer diameter of the limiting block (321) is consistent with the inner diameter of the limiting groove (322).
4. The ring main unit structure convenient to overhaul according to claim 1, characterized in that: The threaded column (332) is a cylindrical structure.
5. The ring main unit structure convenient to overhaul according to claim 1, characterized in that: The outer surface of the fixing seat (31) is a concave-convex structure, and the fixing seat (31) is a cylindrical structure.
6. The ring main unit structure convenient to overhaul according to claim 1, characterized in that: A sealing assembly (34) is arranged between the door plate (2) and the cabinet (1), the sealing assembly (34) is composed of a sealing block (341) and a fixing groove (342), the fixing groove (342) is arranged on the inner side of the door plate (2), and the sealing block (341) is arranged between the door plate (2) and the cabinet (1) and is clamped and fixed with the fixing groove (342).
7. The ring main unit structure convenient to overhaul according to claim 1, characterized in that: A plurality of function small rooms are composed of a busbar room, a load switch room and a combined electrical unit room, and the busbar room, the load switch room and the combined electrical unit room are distributed and arranged on the inner side of the cabinet (1).