A high-voltage ring main unit

Abstract

The utility model relates to the field of electric power engineering discloses a high voltage ring network cabinet, including the cabinet, one side of the cabinet is rotatably connected with three rotating plates, one side of the cabinet is fixedly connected with strong seal mechanism, the inner wall of the cabinet is fixedly connected with locking mechanism, the inner wall of the cabinet is slidably connected with two cable chamber frame bodies, the locking mechanism includes four support plates, the outer wall of four support plates is fixedly connected in the inner wall of the cabinet, the inner wall of support plate is slidably connected with slide column, the outer wall of slide column is equipped with spring, the outer wall of slide column is rotatably connected with two connecting plates, in the utility model, through the contact of rotating plate and cabinet, rotating plate pushes the sliding block, makes spring produce and store the elasticity, simultaneously, slide column pushes the connecting plate and removes, makes the connecting plate drive the rotation of the clamping plate, and the clamping plate clamps the cable chamber frame body, and it is firmly fixed in the cabinet.

Description

Technical Field

[0001] This utility model relates to the field of power engineering, and in particular to a high-voltage ring main unit. Background Technology

[0002] With the rapid development of modern technology and the continuous upgrading of the power industry, the installation environment of power distribution equipment is becoming increasingly restricted in the process of urban development. Urban core areas, residential communities, commercial complexes and other scenarios generally face the problem of space shortage. Traditional large high-voltage switchgear is bulky and not only requires the construction of a separate power distribution plant, but also has strict requirements on the area and load-bearing capacity of the installation site. It is difficult to adapt to the compact urban space layout, and the construction and operation and maintenance costs are high. Therefore, high-voltage ring network cabinets that take into account both power supply reliability and space adaptability have emerged. The current transformers and voltage transformers built into the ring main unit will collect the line current and voltage parameters in real time around the clock. Once abnormal signals such as sudden increase in current or sudden drop in voltage are detected, the protection mechanism will be triggered immediately. Subsequently, the ring main units on both sides of the fault area will act synchronously to quickly disconnect the load switch of the corresponding circuit, completely isolate the faulty section from the ring network, and prevent the fault from spreading to other areas. At the same time, the unaffected areas will automatically switch to the backup power supply path of the ring network to ensure uninterrupted power supply. At present, high-voltage ring main units, with their compact design and ring power supply advantages, are well adapted to the limited power distribution space in cities, effectively improving power supply reliability and providing key support for the power industry's transformation towards high efficiency and miniaturization. They also play a positive role in promoting distribution network upgrades and new energy grid connection. However, there are still obvious shortcomings. The maintenance convenience in some high-voltage ring main unit fault areas is insufficient. Traditional ring main units lack modular design, requiring a complete power outage for maintenance. Furthermore, the replacement of core components relies on specialized tools, which not only prolongs maintenance time but also affects the power supply stability of surrounding areas. Therefore, a high-voltage ring main unit is proposed to solve the above problems. Utility Model Content

[0003] To overcome the above shortcomings, this utility model provides a high-voltage ring main unit, which aims to improve the problem of insufficient maintenance convenience in the fault area of ​​some high-voltage ring main units in the prior art.

[0004] To achieve the above objectives, the present invention adopts the following technical solution: A high-voltage ring main unit includes a cabinet body, three rotating plates rotatably connected to one side of the cabinet body, a strong sealing mechanism fixedly connected to one side of the cabinet body, a locking mechanism fixedly connected to the inner wall of the cabinet body, and two cable compartment frames slidably connected to the inner wall of the cabinet body. The locking mechanism includes four support plates, the outer walls of which are fixedly connected to the inner wall of the cabinet. A sliding column is slidably connected to the inner wall of the support plate. A spring is sleeved on the outer wall of the sliding column. Two connecting plates are rotatably connected to the outer wall of the sliding column. A locking plate is rotatably connected to the other side of the connecting plate. A protruding plate is fixedly connected to the outer wall of the sliding column. A push block is fixedly connected to one side of the sliding column. A reinforcing component is fixedly connected to one side of each of the two cable compartment frames. As a further description of the above technical solution: The sealing mechanism includes three bases, one side of each of the three bases is fixedly connected to one side of the cabinet, the inner wall of each base is threaded with a stud, the top of each stud is fixedly connected to a rotating plate, one side of each of the three rotating plates is fixedly connected to a pull plate, one side of each rotating plate is fixedly connected to a sealing strip, and warning signs are fixedly connected to both sides of the cabinet. As a further description of the above technical solution: The reinforcing component includes a pull ring, one side of which is fixedly connected to one side of the cable chamber frame, and slots are provided on both sides of the cable chamber frame; As a further description of the above technical solution: The outer wall of the support plate is slidably connected to the inner wall of the slot, and one side of the slot plate is slidably connected to one side of the cable compartment frame. As a further description of the above technical solution: One side of the spring is fixedly connected to the inner wall of the support plate, and the other side of the spring is fixedly connected to one side of the protruding plate. As a further description of the above technical solution: The outer wall of the pusher is slidably connected to the inner wall of the support plate, and the outer wall of the protrusion is slidably connected to the inner wall of the support plate. As a further description of the above technical solution: The cross-sectional shape of the support plate is H-shaped, and the outer wall of the connecting plate is slidably connected to the inner wall of the support plate; As a further description of the above technical solution: The outer wall of the stud is threadedly connected to the inner wall of the pull plate, and the outer wall of the pull plate is slidably connected to the inner wall of the base.

[0005] This utility model has the following beneficial effects: 1. In this utility model, by contacting the rotating plate with the cabinet, the rotating plate pushes the slider, causing the spring to generate and store elastic force. At the same time, the sliding column pushes the connecting plate to move, causing the connecting plate to drive the clamping plate to rotate. The clamping plate clamps the cable compartment frame, firmly fixing it inside the cabinet. When the frame needs to be pulled out for maintenance, the rotating plate is rotated again to separate it from the push block. The spring force is released, pushing the convex plate to drive the sliding column to move. The connecting plate then pulls the clamping plate to release, and the frame can slide smoothly out along the support plate. The slot and the support plate cooperate to make the sliding more stable. The pull ring makes it easy for the operator to pull, which greatly improves the operational stability of the entire ring main unit.

[0006] 2. In this invention, when the rotating plate is closed, the pull plate and the base are precisely engaged. Rotating the turntable causes the stud to rotate within the base, locking the pull plate inside the base and improving the stability of the internal structure's movement. Simultaneously, the rotating plate is tightly pressed against the cabinet body, compressing the sealing strip and enhancing the sealing effect, preventing dust and moisture from entering. To open, the turntable is rotated in the opposite direction, releasing the stud and allowing the rotating plate to open easily. Warning signs on both sides of the cabinet serve as safety reminders and prevent accidental operation. Attached Figure Description

[0007] Figure 1 This is a three-dimensional schematic diagram of a high-voltage ring main unit proposed in this utility model; Figure 2 This is a schematic diagram of the rotating plate of a high-voltage ring main unit proposed in this utility model; Figure 3 for Figure 2 Enlarged view of point A in the middle; Figure 4 This is a schematic diagram of the slot structure of a high-voltage ring main unit proposed in this utility model.

[0008] Legend: 1. Cabinet body; 2. Rotating panel; 3. Forced sealing mechanism; 31. Base; 32. Stud; 33. Rotating disc; 34. Pull plate; 35. Sealing strip; 36. Warning sign; 4. Locking mechanism; 41. Support plate; 42. Sliding column; 43. Spring; 44. Connecting plate; 45. Push block; 46. Locking plate; 47. Reinforced component; 471. Slot; 472. Pull ring; 5. Cable compartment frame. Detailed Implementation

[0009] 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.

[0010] Example: A high-voltage ring main unit, referring to Figure 1 , Figure 3 and Figure 4 The system includes a cabinet 1, which is the main frame of the high-voltage ring main unit. Three rotating plates 2 are rotatably connected to one side of the cabinet 1. The rotating plates 2 can rotate around the cabinet 1 to open and close the cabinet 1. A strong sealing mechanism 3 is fixedly connected to one side of the cabinet 1. The strong sealing mechanism 3 can firmly lock the rotating plates 2 onto the cabinet 1, enhance the sealing between the rotating plates 2 and the cabinet 1, and prevent dust and moisture from entering the cabinet 1. A locking mechanism 4 is fixedly connected to the inner wall of the cabinet 1. The locking mechanism 4 can automatically lock the cable compartment frame 5 to prevent the frame from shaking inside the cabinet 1, ensure the stability of the frame position, and facilitate quick unlocking and pulling out the frame for maintenance, improving operational convenience. Two cable compartment frames 5 are slidably connected to the inner wall of the cabinet 1. The cable compartment frames 5 are used to place and protect cables and related electrical components. Their sliding design makes it easy to pull out for maintenance, reducing maintenance time and improving maintenance efficiency. They are the core components for cable storage and protection. Specifically, cabinet 1 serves as the main support frame of the high-voltage ring main unit. The rotating plate 2 on one side of the cabinet 1 opens and closes by rotating, meeting the needs of equipment operation and maintenance. The strong sealing mechanism 3 strengthens the fit between the rotating plate 2 and cabinet 1 through locking action, and uses the sealing structure to block the intrusion path of dust and moisture, ensuring a clean and dry environment inside the cabinet. The locking mechanism 4 fixes the cable compartment frame 5 through an automatic locking mechanism to prevent the frame from shifting inside the cabinet. At the same time, it can be quickly unlocked to facilitate pulling out the frame for maintenance. The cable compartment frame 5 is flexibly pulled out through a sliding design, which can properly store and protect cables and electrical components, reduce disassembly steps during maintenance, shorten maintenance time, and improve overall operation and maintenance efficiency. The locking mechanism 4 includes four support plates 41, the outer walls of which are fixedly connected to the inner wall of the cabinet 1. The cross-sectional shape of the support plates 41 is H-shaped. The H-shaped structure ensures smooth sliding of the frame and avoids deviation. It is a dual support component for the locking mechanism 4 and the sliding of the frame. A sliding column 42 is slidably connected to the inner wall of the support plate 41. A spring 43 is sleeved on the outer wall of the sliding column 42. The spring 43 stores or releases energy through elastic deformation to drive the sliding column 42 to reset. It is the power source for the automatic action of the locking mechanism 4. Two connecting plates 44 are rotatably connected to the outer wall of the sliding column 42. The outer wall of the connecting plate 44 is slidably connected to the inner wall of the support plate 41. It is a force direction conversion component. A locking plate 46 is rotatably connected to the other side of the connecting plate 44. One side of the locking plate 46 is slidably connected to one side of the cable compartment frame 5. The locking plate 46 rotates under the action of the connecting plate 44, locking or releasing the cable compartment frame 5, directly realizing the locking and unlocking of the frame. It is the locking mechanism 4. The actuator has a convex plate fixedly connected to the outer wall of the slide column 42. The outer wall of the convex plate is slidably connected to the inner wall of the support plate 41. The convex plate slides synchronously with the slide column 42, compressing or stretching the spring 43 to store energy on the one hand, and transmitting the power of the slide column 42 on the other hand, ensuring that the elastic force of the spring 43 can effectively drive the slide column 42 to reset. A push block 45 is fixedly connected to one side of the slide column 42. The outer wall of the push block 45 is slidably connected to the inner wall of the support plate 41. The push block 45 cooperates with the rotating plate 2. When the rotating plate 2 is closed, it squeezes the push block 45 to drive the slide column 42 to slide, triggering the locking plate 46 to lock the frame. When the rotating plate 2 is opened, it disengages from the push block 45, and the spring 43 drives the slide column 42 to reset and unlock. It is a key component for the linkage between the locking mechanism 4 and the rotating plate 2. A reinforcing component 47 is fixedly connected to one side of each of the two cable chamber frames 5. The reinforcing component 47 makes it convenient for the operator to pull the cable chamber frame 5, while enhancing the stability of the cooperation between the frame and the support plate 41 and improving the smoothness of the frame sliding. Specifically, the four H-shaped support plates 41 provide double support for the locking mechanism 4 and the frame. Their structure can limit the sliding trajectory of the frame, prevent deviation, and ensure smooth sliding. When the sliding column 42 slides in the support plate 41, the convex plate moves synchronously, compressing or stretching the spring 43 to store energy. When the spring 43 releases energy, it can drive the sliding column 42 to reset, providing power for the locking action. The movement of the sliding column 42 will drive the two connecting plates 44 to rotate. The connecting plates 44 convert the linear motion of the sliding column 42 into the rotational motion of the locking plate 46, so that the locking plate 46 can lock or release the cable chamber frame 5, realizing locking and unlocking. When the rotating plate 2 is closed, it squeezes the push block 45, which drives the sliding column 42 to slide and trigger the lock. After the rotating plate 2 is opened, the push block 45 loses pressure, and the spring 43 drives the sliding column 42 to reset and complete the unlocking, realizing the linkage between the two. The reinforcing components 47 on the two frames not only make it convenient for the operator to pull the frame, but also enhance the stability of the cooperation between the frame and the support plate 41 and improve the smoothness of sliding. The sealing mechanism 3 includes three bases 31, one side of which is fixedly connected to one side of the cabinet 1. The inner wall of the base 31 is threaded with studs 32, and the top of the studs 32 is fixedly connected with a rotating disk 33. The rotating disk 33 increases the contact area between the hand and the studs 32, making it easier for the operator to rotate the studs 32, saving effort and preventing slippage. One side of each of the three rotating plates 2 is fixedly connected with a pull plate 34. The pull plate 34 is a key component connecting the sealing mechanism 3 and the rotating plate 2. One side of the rotating plate 2 is fixedly connected with a sealing strip 35. The sealing strip 35 is pressed when the rotating plate 2 is closed, filling the gap between the rotating plate 2 and the cabinet 1, effectively preventing dust and moisture from entering the cabinet 1, protecting the internal electrical components, and improving the sealing and protection effect of the cabinet 1. Warning signs 36 are fixedly connected to both sides of the cabinet 1. The warning signs 36 serve as safety reminders, reminding the operator that there is high-voltage equipment inside the cabinet 1. Specifically, the studs 32 on the three bases 31 can be adjusted in position via the rotating disc 33. The rotating disc 33 increases the contact area for the hands, making it easier and less slippery for the operator to rotate the studs 32. Together with the pull plate 34, it locks and reinforces the rotating plate 2. When the rotating plate 2 is closed, the sealing strip 35 is squeezed and deformed, filling the gap between the rotating plate 2 and the cabinet 1, forming a sealing barrier to prevent dust and moisture from entering and to protect the internal electrical components. The warning signs 36 on both sides of the cabinet 1 continuously convey safety reminders, clearly indicating that the cabinet contains high-voltage equipment, reminding the operator to pay attention to protection and avoid safety risks.

[0011] Reference Figures 2 to 4 The reinforcing component 47 includes a pull ring 472, one side of which is fixedly connected to one side of the cable compartment frame 5. The pull ring 472 provides a leverage point for the operator, facilitating the pulling of the cable compartment frame 5 into and out of the cabinet 1, reducing the difficulty of operation during maintenance and improving maintenance convenience. Both sides of the cable compartment frame 5 are provided with slots 471. The outer wall of the support plate 41 is slidably connected to the inner wall of the slots 471. The slots 471 cooperate with the support plate 41 to restrict the sliding direction of the cable compartment frame 5, ensuring that the frame slides smoothly along the support plate 41. To prevent shaking or displacement and improve the stability of the frame sliding, one side of the spring 43 is fixedly connected to the inner wall of the support plate 41, and the other side of the spring 43 is fixedly connected to one side of the convex plate. The spring 43 stores or releases energy through elastic deformation to drive the sliding column 42 to reset. The outer wall of the pull plate 34 is slidably connected to the inner wall of the base 31. The pull plate 34 cooperates with the base 31. When the stud 32 locks the pull plate 34, it drives the rotating plate 2 to fit tightly against the cabinet 1, enhancing the sealing performance. It is a key component connecting the strong sealing mechanism 3 and the rotating plate 2. Specifically, the pull ring 472 provides operators with a convenient point of leverage, allowing them to easily pull the cable compartment frame 5 into and out of the cabinet 1, reducing the difficulty of maintenance operations. The slots 471 on both sides of the frame cooperate with the support plate 41 to limit the sliding direction of the frame, preventing wobbling or deviation during sliding and ensuring stability. The spring 43 stores and releases energy through elastic deformation, which can drive the sliding column 42 to automatically reset and provide power for the locking action. When the pull plate 34 cooperates with the base 31, the stud 32 locks the pull plate 34, which will pull the rotating plate 2 to fit tightly against the cabinet 1, further compressing the sealing strip 35, strengthening the sealing performance of the cabinet 1, and effectively blocking the intrusion path of dust and moisture.

[0012] The implementation principle of this application embodiment is as follows: When the rotating plate 2 rotates and contacts the cabinet 1, the rotating plate 2 pushes the slider to move, so that the spring 43 generates elastic force and stores it. At the same time, the sliding column 42 pushes the connecting plate 44 to move, so that the connecting plate 44 drives the clamping plate 46 to rotate. The clamping plate 46 then clamps the cable compartment frame 5 and firmly fixes it in the cabinet. When it is necessary to pull out the frame for maintenance, the rotating plate 2 is rotated again, so that the rotating plate 2 and the push block 45 are separated, and then the elastic force of the spring 43 is released, pushing the convex plate to drive the sliding column 42 to move, so that the connecting plate 44 pulls the clamping plate 46 to release it. The frame can then slide out smoothly along the support plate 41. The slot 471 cooperates with the support plate 41 to make the sliding process more stable, and the pull ring 472 makes it convenient for the operator to exert force to pull. When the rotating plate 2 is closed, the pull plate 34 engages with the base 31. Rotating the rotating disk 33 causes the stud 32 to rotate inside the base 31, thereby locking the pull plate 34 inside the base 31. This improves the stability of the internal structure's movement. At the same time, the rotating plate 2 is pressed tightly against the cabinet 1, and the sealing strip 35 is compressed to enhance the sealing effect and prevent dust and moisture from entering. When it needs to be opened, the rotating disk is rotated in the opposite direction, the stud 32 releases the pull plate 34, and the rotating plate 2 can be easily opened. The warning signs 36 on both sides of the cabinet 1 serve as safety reminders to prevent misoperation.

[0013] Finally, it should be noted that the above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. Although the present 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 the present utility model should be included within the protection scope of the present utility model.

Claims

1. A high-voltage ring main unit, comprising a cabinet (1), characterized in that: Three rotating plates (2) are rotatably connected to one side of the cabinet (1), a strong sealing mechanism (3) is fixedly connected to one side of the cabinet (1), a locking mechanism (4) is fixedly connected to the inner wall of the cabinet (1), and two cable chamber frames (5) are slidably connected to the inner wall of the cabinet (1). The locking mechanism (4) includes four support plates (41). The outer walls of the four support plates (41) are fixedly connected to the inner wall of the cabinet (1). The inner wall of the support plate (41) is slidably connected to a slide column (42). The outer wall of the slide column (42) is fitted with a spring (43). The outer wall of the slide column (42) is rotatably connected to two connecting plates (44). The other side of the connecting plate (44) is rotatably connected to a locking plate (46). The outer wall of the slide column (42) is fixedly connected to a protruding plate. A push block (45) is fixedly connected to one side of the slide column (42). A reinforcing component (47) is fixedly connected to one side of each of the two cable compartment frames (5).

2. A high-voltage ring main unit according to claim 1, characterized in that: The sealing mechanism (3) includes three bases (31), one side of each of the three bases (31) is fixedly connected to one side of the cabinet (1), the inner wall of each base (31) is threaded with a stud (32), the top of each stud (32) is fixedly connected with a rotating disk (33), one side of each of the three rotating plates (2) is fixedly connected with a pull plate (34), one side of each rotating plate (2) is fixedly connected with a sealing strip (35), and both sides of the cabinet (1) are fixedly connected with warning signs (36).

3. A high-voltage ring main unit according to claim 2, characterized in that: The reinforcing component (47) includes a pull ring (472), one side of which is fixedly connected to one side of the cable chamber frame (5), and slots (471) are provided on both sides of the cable chamber frame (5).

4. A high-voltage ring main unit according to claim 3, characterized in that: The outer wall of the support plate (41) is slidably connected to the inner wall of the slot (471), and one side of the card plate (46) is slidably connected to one side of the cable chamber frame (5).

5. A high-voltage ring main unit according to claim 1, characterized in that: One side of the spring (43) is fixedly connected to the inner wall of the support plate (41), and the other side of the spring (43) is fixedly connected to one side of the convex plate.

6. A high-voltage ring main unit according to claim 1, characterized in that: The outer wall of the pusher (45) is slidably connected to the inner wall of the support plate (41), and the outer wall of the protrusion is slidably connected to the inner wall of the support plate (41).

7. A high-voltage ring main unit according to claim 1, characterized in that: The cross-sectional shape of the support plate (41) is H-shaped, and the outer wall of the connecting plate (44) is slidably connected to the inner wall of the support plate (41).

8. A high-voltage ring main unit according to claim 2, characterized in that: The outer wall of the stud (32) is threadedly connected to the inner wall of the pull plate (34), and the outer wall of the pull plate (34) is slidably connected to the inner wall of the base (31).

Images