A ring main unit with an operating hole cover

Abstract

The utility model provides a kind of looped net cabinet with operating hole cover, belong to looped net cabinet field, it is constituted by cable work store, cable chamber door, mechanism chamber, switch chamber, control box mechanism, mechanism chamber panel, display mechanism and operating hole cover mechanism, the problem that short life, poor reliability, frequent maintenance replacement is caused by the aging, embrittlement, mechanical strength deficiency of traditional plastic operating hole cover in this scheme is solved completely, ensure that cover always maintains structural integrity, function reliable, open and close smoothly, seal well in the entire looped net cabinet life cycle, significantly improve the tolerance of cover in harsh natural environment, chemical environment and mechanical environment, improve the mechanical protection capability, fireproof performance of cover itself, indirectly guarantee the safety of equipment and operating personnel in cabinet, torsional spring and pin shaft are made of high-quality stainless steel material, can fundamentally overcome the defects of plastic aging, embrittlement and chemical corrosion.

Description

Technical Field

[0001] This utility model belongs to the field of ring main units, specifically relating to a ring main unit with an operation hole cover. Background Technology

[0002] Ring main units (RMS) are crucial switching equipment in power distribution networks, used for line distribution, control, and protection. Their control panel typically features operating holes for inserting operating handles to perform opening and closing operations on the internal circuit breakers and disconnecting switches, as well as energy storage. These operating holes must be reliably sealed during equipment operation to prevent dust, moisture, small animals, etc., from entering, ensuring the safety of the internal mechanisms and operators; however, they need to be easily accessible for maintenance or operation.

[0003] Currently, the vast majority of operating hole covers on the control panel of ring main unit are made of engineering plastic injection molding. Their structure typically includes: a cover body for covering the operating hole; a hinge structure allowing the cover to rotate and open; and a locking or magnetic structure for securing the cover in the closed position. Utility Model Content

[0004] The purpose of this utility model is to provide a ring main unit with an operation hole cover, which aims to solve the problem of short lifespan caused by the non-durable material of the plastic operation hole cover in the prior art.

[0005] To achieve the above objectives, this utility model provides the following technical solution:

[0006] A ring main unit with an operating port cover includes:

[0007] Cable work compartment;

[0008] Cable compartment door, which is installed on the cable working compartment;

[0009] The mechanism room is installed on the cable working compartment;

[0010] The switch room is installed above the cable working compartment and the mechanism room;

[0011] The control box mechanism is located in the mechanism room;

[0012] Its characteristic is that it further includes:

[0013] The mechanism room panel is installed on the mechanism room;

[0014] The display mechanism is located on the panel of the mechanism room;

[0015] The operating hole cover mechanism is provided in multiple sets, and all sets of the operating hole cover mechanism are located on the panel of the mechanism chamber.

[0016] As a preferred embodiment of this utility model, the control box mechanism includes a control box chamber and a control box panel, wherein the control box chamber is installed on the mechanism chamber and the control box panel is installed on the control box chamber.

[0017] As a preferred embodiment of this utility model, the display mechanism includes a fault indicator, a live display, and a silkscreened main and branch busbars. The fault indicator is mounted on the mechanism panel, the live display is mounted on the mechanism panel, and the silkscreened main and branch busbars are mounted on the mechanism panel.

[0018] As a preferred embodiment of this utility model, each set of the operating hole cover mechanism includes an operating hole cover component and an electric padlock. The operating hole cover component is installed on the mechanism chamber panel, and the electric padlock is installed on the operating hole cover component.

[0019] As a preferred embodiment of this utility model, each set of the operation hole cover components includes:

[0020] The base component is located on the panel of the mechanism room;

[0021] An operating hole cover assembly is located on the base component.

[0022] As a preferred embodiment of this utility model, each set of base components includes an operation hole cover seat, a first bent plate of the cover seat, and fixing rivets. The operation hole cover seat is detachably connected to the mechanism chamber panel by multiple fixing rivets. The first bent plate of the cover seat is disposed on the operation hole cover seat, and the first bent plate of the cover seat and the operation hole cover seat are integrally formed.

[0023] As a preferred embodiment of this utility model, each set of operating hole cover assemblies includes an operating hole cover plate, a first bend in the cover plate, a torsion spring, and a pin. The pin is movably inserted into the operating hole cover seat, the operating hole cover plate is sleeved on the pin, the torsion spring is movably sleeved on the pin, one end of the torsion spring abuts against the operating hole cover seat, and the other end of the torsion spring abuts against the operating hole cover plate. The first bend in the cover plate is located on the operating hole cover plate, and the first bend in the cover plate and the operating hole cover plate are an integral structure.

[0024] Compared with the prior art, the beneficial effects of this utility model are:

[0025] 1. This solution completely solves the problems of short lifespan, poor reliability, and frequent maintenance and replacement required by traditional plastic operating hole covers due to aging, embrittlement, and insufficient mechanical strength.

[0026] 2. In this solution, it is ensured that the cover maintains structural integrity, reliable function, smooth opening and closing, and good sealing throughout the entire life cycle of the ring main unit.

[0027] 3. This solution significantly improves the cover's resistance to harsh natural, chemical, and mechanical environments.

[0028] 4. This solution enhances the mechanical protection and fire resistance of the cover itself, indirectly ensuring the safety of equipment and operators inside the cabinet. Attached Figure Description

[0029] The accompanying drawings are provided to further illustrate the present invention and form part of the specification. They are used together with the embodiments of the present invention to explain the present invention, but do not constitute a limitation thereof. In the drawings:

[0030] Figure 1 This is a three-dimensional structural diagram of the present invention;

[0031] Figure 2 This is a structural schematic diagram of the panel of the mechanism of this utility model;

[0032] Figure 3 This utility model Figure 2 Enlarged view of point A in the middle;

[0033] Figure 4 This is the operating hole cover seat of this utility model;

[0034] Figure 5 This is an exploded view of the operating hole cover plate of this utility model;

[0035] Figure 6 This is a flip view of the operating hole cover plate of this utility model.

[0036] In the diagram: 1. Cable working compartment; 2. Switch room; 3. Mechanism room; 4. Control box room; 5. Control box panel; 6. Mechanism room panel; 610. Fault indicator; 611. Live indicator; 612. Silkscreened main and branch double busbars; 613. Operating hole cover assembly; 6131. ​​Operating hole cover seat; 6132. First bend of cover seat; 6133. Operating hole cover plate; 6134. First bend of cover plate; 6135. Torsion spring; 6136. Pin; 6137. Fixing rivet; 614. Power padlock; 7. Cable compartment door. Detailed Implementation

[0037] 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.

[0038] Please see Figures 1-6 The technical solution provided in this embodiment is as follows:

[0039] A ring main unit with an operating hole cover comprises a cable working compartment 1, a cable chamber door 7, a mechanism chamber 3, a switch chamber 2, a control box mechanism, a mechanism chamber panel 6, a display mechanism, and an operating hole cover mechanism. The cable chamber door 7 is installed on the cable working compartment 1, the mechanism chamber 3 is installed on the cable working compartment 1, the switch chamber 2 is installed on both the cable working compartment 1 and the mechanism chamber 3, and the mechanism chamber panel 6 is installed on the mechanism chamber 3.

[0040] In a specific embodiment of this utility model, the installation of the cable compartment door 7 prevents accidental entry into the energized compartment.

[0041] Specifically, the control box mechanism is located on the mechanism chamber 3. The control box mechanism includes a control box chamber 4 and a control box panel 5. The control box chamber 4 is installed on the mechanism chamber 3, and the control box panel 5 is installed on the control box chamber 4.

[0042] In a specific embodiment of this utility model, the control box 4 is equipped with a variety of secondary components to monitor the various states of the ring main unit, and the secondary components inside the control box 4 are protected by the control box panel 5.

[0043] Specifically, the display mechanism is located on the panel 6 of the mechanism room. The display mechanism includes a fault indicator 610, a live display 611, and a silkscreened main and branch double busbar 612. The fault indicator 610 is installed on the panel 6 of the mechanism room, the live display 611 is installed on the panel 6 of the mechanism room, and the silkscreened main and branch double busbar 612 is installed on the panel 6 of the mechanism room.

[0044] In a specific embodiment of this utility model, the fault indicator 610 functions to automatically trigger a flip-up, flashing, or color-changing indicator by detecting sudden changes in current or magnetic field when a short circuit or grounding fault occurs in the line, thus visually marking the faulty branch and shortening the inspection time. The live display 611 acts as a "safety gatekeeper" for the ring main unit, using a conspicuous red light to warn "High voltage inside, do not touch!" It can display in real time whether the busbars and cables inside the ring main unit are energized, preventing maintenance personnel from accidentally touching high-voltage components and avoiding electric shock accidents. The silkscreened main and branch busbars 612 are the core design to ensure safe operation of the equipment and improve maintenance efficiency, marking the positions of the main busbar, branch busbars, and grounding switch to prevent operators from accidentally opening / closing circuit breakers or entering energized compartments.

[0045] Specifically, each set of operating hole cover mechanisms includes an operating hole cover component 613 and an electric padlock 614. The operating hole cover component 613 is installed on the mechanism chamber panel 6, and the electric padlock 614 is installed on the operating hole cover component 613.

[0046] In a specific embodiment of this utility model, the electric padlock 614 is used to lock the first bending plate 6132 of the cover seat and the first bending plate 6134 of the cover plate to prevent operation by non-maintenance personnel.

[0047] Specifically, the base components are located on the mechanism chamber panel 6. Each set of base components includes an operation hole cover seat 6131, a cover seat first bending plate 6132, and fixing rivets 6137. The operation hole cover seat 6131 is detachably connected to the mechanism chamber panel 6 by multiple fixing rivets 6137. The cover seat first bending plate 6132 is located on the operation hole cover seat 6131, and the cover seat first bending plate 6132 and the operation hole cover seat 6131 are integrally formed.

[0048] In a specific embodiment of this utility model, the operating hole cover seat 6131 and the operating hole cover plate 6133 are made of austenitic stainless steel as the main material. They are manufactured using an integral molding process, reducing welding points, eliminating stress concentration, and improving overall rigidity and strength. The operating hole cover seat 6131 is manufactured using an integral molding process and features an embedded sealing groove design. The precisely designed annular sealing groove has a round hole in the middle area, allowing the operating handle to be inserted into the operating hole cover seat 6131 for opening, closing, and energy storage operations. The round hole of the operating hole cover seat 6131 has a reasonably designed flange that is embedded into the opening on the mechanism chamber panel 6. Then, fixing rivets 6137 are used to firmly fix the operating hole cover seat 6131 to the mechanism chamber panel 6, ensuring that the operating hole cover seat 6131 and the mechanism chamber panel 6 are completely fitted together, thus providing a sealing function.

[0049] Specifically, the operating hole cover assembly is located on the base component. Each operating hole cover assembly includes an operating hole cover plate 6133, a first bend in the cover plate 6134, a torsion spring 6135, and a pin 6136. The pin 6136 is movably inserted into the operating hole cover seat 6131. ​​The operating hole cover plate 6133 is sleeved on the pin 6136. The torsion spring 6135 is movably sleeved on the pin 6136. One end of the torsion spring 6135 abuts against the operating hole cover seat 6131, and the other end of the torsion spring 6135 abuts against the operating hole cover plate 6133. The first bend in the cover plate 6134 is located on the operating hole cover plate 6133, and the first bend in the cover plate 6134 and the operating hole cover plate 6133 are an integral structure.

[0050] In a specific embodiment of this utility model, both the torsion spring 6135 and the pin 6136 are made of high-quality stainless steel, which can fundamentally overcome the defects of plastic aging, embrittlement, and chemical corrosion, and has excellent weather resistance, corrosion resistance, mechanical strength, and high and low temperature resistance. The operating hole cover plate 6133 is also made of one-piece molding process, with a cylindrical recess in the middle area. When the operating hole cover plate 6133 is closed, the cylindrical recessed area in the middle enters the middle hole of the operating hole cover seat 6131, and interacts with the operating hole. The hole cover 6131 fits perfectly together, providing durable and reliable dustproof, waterproof, and moisture-proof sealing performance to protect the internal components of the mechanism. The operating hole cover plate 6133 and the operating hole cover seat 6131 are fixedly connected together by a pin 6136. A torsion spring 6135 is installed on the pin 6136, allowing the operating hole cover plate 6133 to be manually opened during operation and maintenance. After maintenance, the spring force of the torsion spring 6135 will cause the operating hole cover plate 6133 to fit back into the operating hole cover seat 6131. ​​This completely solves the problem of easy breakage and wear failure of plastic hinges / buckles.

[0051] The working principle or process of the ring main unit with an operation hole cover provided by this utility model is as follows:

[0052] Power outage maintenance:

[0053] Unlock the power padlock 614 with a special key. For this ring main unit, open the operating hole cover 6133 at the trip operation hole, press the circuit breaker trip button to trip the circuit breaker. → Open the operating hole cover 6133 at the isolating switch operation hole, insert the operating handle, and operate counterclockwise to trip the isolating switch. → Open the operating hole cover 6133 at the grounding switch operation hole, insert the operating handle, and rotate clockwise to close the grounding switch. Ensure that the indicator light on the live display 611 is off to complete the power outage operation. At this time, the cable compartment door 7 can be opened for operation and maintenance.

[0054] Power was restored after maintenance was completed.

[0055] Close the cable compartment door 7, open the operating hole cover 6133 at the grounding switch operating hole, insert the operating handle, and rotate it counterclockwise to put the grounding switch in the open state. Open the operating hole cover 6133 at the isolating switch operating hole, insert the operating handle, and operate it clockwise to close the isolating switch. Open the operating hole cover 6133 at the energy storage operating hole, insert the operating handle, and rotate it clockwise to store energy in the circuit breaker. After energy storage is complete, pull out the operating handle. Open the operating hole cover 6133 at the closing operating hole, press the circuit breaker closing button, and the circuit breaker closes. Power is supplied, and the indicator light on the live display 611 lights up, indicating that the line is energized, completing the power supply operation.

[0056] Finally, it should be noted that the above are merely preferred embodiments of this utility model and are not intended to limit the utility model. Although the utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of this utility model should be included within the protection scope of this utility model.

Claims

1. A ring main unit with an operating hole cover, comprising: Cable working compartment (1); Cable compartment door (7), which is installed on the cable working compartment (1); The mechanism room (3) is installed on the cable working compartment (1); Switch room (2), which is installed on cable working compartment (1) and mechanism room (3); The control box mechanism is located in the mechanism room (3); Its characteristic is that it further includes: The mechanism room panel (6) is mounted on the mechanism room (3); The display mechanism is located on the panel (6) of the mechanism room; The operating hole cover mechanism is provided in multiple sets, and all sets of the operating hole cover mechanism are located on the mechanism chamber panel (6).

2. A ring main unit with an operating hole cover according to claim 1, characterized in that: The control box mechanism includes a control box chamber (4) and a control box panel (5). The control box chamber (4) is installed on the mechanism chamber (3), and the control box panel (5) is installed on the control box chamber (4).

3. A ring main unit with an operating hole cover according to claim 2, characterized in that: The display mechanism includes a fault indicator (610), a live display (611), and a silkscreened main and branch double busbar (612). The fault indicator (610) is installed on the mechanism room panel (6), the live display (611) is installed on the mechanism room panel (6), and the silkscreened main and branch double busbar (612) is installed on the mechanism room panel (6).

4. A ring main unit with an operating hole cover according to claim 3, characterized in that: Each set of the operating hole cover mechanism includes an operating hole cover component (613) and an electric padlock (614). The operating hole cover component (613) is mounted on the mechanism chamber panel (6), and the electric padlock (614) is mounted on the operating hole cover component (613).

5. A ring main unit with an operating hole cover according to claim 4, characterized in that, Each set of the aforementioned operating hole cover components (613) includes: The base component is located on the panel (6) of the mechanism room; An operating hole cover assembly is located on the base component.

6. A ring main unit with an operating hole cover according to claim 5, characterized in that: Each set of base components includes an operation hole cover seat (6131), a cover seat first bending plate (6132), and fixing rivets (6137). The operation hole cover seat (6131) is detachably connected to the mechanism chamber panel (6) by multiple fixing rivets (6137). The cover seat first bending plate (6132) is provided on the operation hole cover seat (6131), and the cover seat first bending plate (6132) and the operation hole cover seat (6131) are integrally formed.

7. A ring main unit with an operating hole cover according to claim 6, characterized in that: Each set of the operating hole cover assembly includes an operating hole cover plate (6133), a first bend of the cover plate (6134), a torsion spring (6135), and a pin (6136). The pin (6136) is movably inserted into the operating hole cover seat (6131). The operating hole cover plate (6133) is sleeved on the pin (6136). The torsion spring (6135) is movably sleeved on the pin (6136). One end of the torsion spring (6135) abuts against the operating hole cover seat (6131), and the other end of the torsion spring (6135) abuts against the operating hole cover plate (6133). The first bend of the cover plate (6134) is provided on the operating hole cover plate (6133), and the first bend of the cover plate (6134) and the operating hole cover plate (6133) are an integral structure.

Images