A power metering connection device for electrical engineering

Abstract

This utility model discloses a power metering wiring device for power engineering, relating to the field of power engineering wiring technology. It includes a power metering box and a sealed door. A slider moves within a guide rail, allowing the heat dissipation box and lower wiring plate to be moved outside the power metering box for wiring. A first movable rod fixes a rounded corner positioning block and an H-shaped connecting plate to the outer wall of a reinforcing rod, providing a buffer effect for the cable during wiring. A limiting sleeve enhances the limiting connection between the rounded corner positioning block and the reinforcing rod. A second movable rod fixes multiple first rounded corner wiring protection frames and second rounded corner wiring protection frames to one end of the inner side of the H-shaped connecting plate, providing effective buffer space for the cable and achieving a protective positioning effect. The heat dissipation box and heat dissipation mesh are interconnected, providing effective heat dissipation. An elastic locking ball engages with the locking hole, enabling quick installation of an L-shaped support plate, providing support and fixation for the lower and upper wiring plates.

Description

Technical Field

[0001] This utility model relates to the field of power engineering wiring technology, and in particular to a power metering wiring device for power engineering. Background Technology

[0002] In power systems, electricity metering boxes are crucial facilities used to install metering equipment such as electricity meters and instrument transformers, and to accurately measure users' electricity consumption. They typically integrate complex terminal blocks for connecting incoming power supplies, outgoing loads, and metering equipment. The accuracy, safety, and reliability of these wiring operations directly affect the fairness of electricity metering, the stable operation of the power grid, and the safety of users' lives and property.

[0003] Traditional power metering boxes have a compact internal structure and densely packed components. When performing wiring, calibration, or cable replacement, workers often need to reach into the box or use tools to perform delicate operations within an extremely limited space, reducing work efficiency, prolonging power outage time, and increasing the risk of accidents such as incorrect wiring, tool short circuits, or contact with live parts due to obstructed vision and inconvenient operation. These accidents pose a serious threat to the personal safety of operators. In existing technologies, cables often lack effective buffering and flexible fixing mechanisms after entering the box. When the box is subjected to external vibration, wind and rain, or thermal expansion and contraction of the cables themselves, the stress is directly transmitted to the connection points between the terminals and the cables. Over time, this repeated stress can easily lead to wear and tear on the cable insulation, fatigue fracture of the wire core, or loosening of the terminals, resulting in serious faults such as poor contact, overheating, or even equipment burnout, affecting the continuity and stability of power supply. Traditional metering boxes typically use screws and other fasteners to directly fix internal components to the box body. This fixing method requires alignment and tightening during installation, which is time-consuming and labor-intensive. When it is necessary to repair or replace a component, each screw must be removed, which is cumbersome and not conducive to rapid maintenance and modular upgrades.

[0004] To address the above problems, it is necessary to design a power metering wiring device for power engineering to overcome these issues. Utility Model Content

[0005] The main purpose of this utility model is to provide a power metering wiring device for power engineering, which can effectively solve the problems in the background technology.

[0006] To achieve the above objectives, the technical solution adopted by this utility model is as follows: A power metering wiring device for power engineering includes a power metering box and a sealed door, wherein the inner side of the power metering box is provided with wiring protection components; The wiring protection assembly includes guide rails at both ends of the inner side of the power metering box. A slider is connected to the inner side of each guide rail. A heat dissipation box is connected to the end of the slider away from the guide rail. An L-shaped support plate is connected to the top of the heat dissipation box. A lower wiring plate is connected to the top of the L-shaped support plate. A reinforcing frame is connected to the top of the lower wiring plate. Upper wiring plates are connected to both ends of the top of the reinforcing frame. Multiple first movable rods are located at both ends of the inner side of the lower wiring plate. Reinforcing rods are connected to the outer walls of the multiple first movable rods. Limit sleeves are fitted onto the outer walls of the reinforcing rods. A rounded corner positioning block is fitted onto the end of the outer wall of the reinforcing rod near the limit sleeve. An H-shaped connecting plate is connected to the outer wall of the rounded corner positioning block. Second movable rods are connected to one end of the inner side of each of the multiple H-shaped connecting plates. A first rounded corner wiring protection frame and a second rounded corner wiring protection frame are respectively connected to the ends of the multiple second movable rods away from the H-shaped connecting plates.

[0007] As a preferred embodiment of this utility model, wiring holes are provided on the inner sides of both the lower and upper wiring boards, multiple clamping holes are provided on the top of the two L-shaped support plates, an installation block is installed at the bottom inside the heat sink, a telescopic rod is connected to the top of the installation block, a spring is connected to the outer wall of the telescopic rod, an elastic clamping ball is connected to the top of the telescopic rod, and a heat dissipation mesh plate is installed in the middle of the top of the heat sink.

[0008] In a preferred embodiment of this utility model, the slider is slidably connected to the inner side of the guide rail, the top of the heat sink is in contact with the bottom of the L-shaped support plate, and the L-shaped support plate is fixedly connected to the lower wiring plate by a connecting rod.

[0009] As a preferred embodiment of this utility model, the lower wiring plate is fixedly connected to the reinforcing frame, the reinforcing frame and the upper wiring plate are both fixedly connected to the lower wiring plate through connecting rods, and the lower wiring plate is rotatably connected to a plurality of the first movable rods.

[0010] As a preferred embodiment of this utility model, the first movable rod is rotatably connected to the reinforcing rod, the limiting sleeve is sleeved on the outer wall of the reinforcing rod, and the rounded corner positioning block is rotatably connected to the reinforcing rod.

[0011] As a preferred embodiment of this utility model, the plurality of rounded corner positioning blocks are rotatably connected to the plurality of second movable rods, and the plurality of second movable rods are rotatably connected to the plurality of first rounded corner wiring protection frames and second rounded corner wiring protection frames.

[0012] As a preferred embodiment of this utility model, the elastic locking ball penetrates the top of the L-shaped support plate and engages with the inside of the locking hole. The elastic locking ball is rotatably connected to the telescopic rod, and the telescopic rod is rotatably connected to the mounting block.

[0013] Beneficial effects Compared with the prior art, the present invention has the following beneficial effects: This power metering wiring device for power engineering uses a slider that moves within a guide rail to move the heat dissipation box and lower wiring plate outside the power metering box for wiring work. A first movable rod fixes the rounded corner positioning block and H-shaped connecting plate to the outer wall of the reinforcing rod, providing a buffer effect for the cables during wiring. A limiting sleeve enhances the limiting connection between the rounded corner positioning block and the reinforcing rod. A second movable rod fixes multiple first and second rounded corner wiring protection frames to one end of the inner side of the H-shaped connecting plate, providing effective buffer space for the cables and achieving a protective positioning effect. The heat dissipation box and heat dissipation mesh are interconnected for effective heat dissipation. An elastic locking ball engages with the locking hole, allowing for quick installation of the L-shaped support plate, providing support and fixation for the lower and upper wiring plates. Attached Figure Description

[0014] Figure 1 This is a schematic diagram of the overall structure of this utility model; Figure 2 This is a schematic diagram of the installation structure of the lower and upper wiring boards of this utility model; Figure 3 This is a schematic diagram of the installation structure of the first rounded corner wiring protection frame and the second rounded corner wiring protection frame of this utility model; Figure 4 This is a schematic diagram of structure A of this utility model; Figure 5 This is a schematic diagram of the elastic locking ball installation structure of this utility model.

[0015] In the diagram: 1. Power metering box; 2. Sealed door; 3. Guide rail; 4. Slider; 5. Heat sink; 6. L-shaped support plate; 7. Lower wiring plate; 8. Reinforcing frame; 9. Upper wiring plate; 10. Wiring hole; 11. First movable rod; 12. Reinforcing rod; 13. Limit sleeve; 14. Rounded corner positioning block; 15. H-shaped connecting plate; 16. Second movable rod; 17. First rounded corner wiring protection frame; 18. Second rounded corner wiring protection frame; 19. Clamping hole; 20. Heat dissipation mesh plate; 21. Mounting block; 22. Telescopic rod; 23. Spring; 24. Elastic clamping ball. Detailed Implementation

[0016] To make the technical means, creative features, objectives and effects of this utility model easier to understand, the present utility model will be further described below in conjunction with specific embodiments.

[0017] like Figures 1-5 As shown, a power metering wiring device for power engineering includes a power metering box 1 and a sealed door 2. The inner side of the power metering box 1 is provided with wiring protection components. The wiring protection assembly includes guide rails 3 set at both ends of the inner side of the power metering box 1. A slider 4 is connected to the inner side of the two guide rails 3. A heat dissipation box 5 is connected to the end of the slider 4 away from the guide rail 3. An L-shaped support plate 6 is connected to the top of the heat dissipation box 5. A lower wiring plate 7 is connected to the top of the L-shaped support plate 6. A reinforcing frame 8 is connected to the top of the lower wiring plate 7. An upper wiring plate 9 is connected to both ends of the top of the reinforcing frame 8. Multiple first movable rods 11 are located at both ends of the inner side of the lower wiring plate 7. A reinforcing rod 12 is connected to the outer wall of the multiple first movable rods 11. A limit sleeve 13 is sleeved on the outer wall of the reinforcing rod 12. A rounded corner positioning block 14 is sleeved on the end of the outer wall of the reinforcing rod 12 near the limit sleeve 13. An H-shaped connecting plate 15 is connected to the outer wall of the rounded corner positioning block 14. A second movable rod 16 is connected to one end of the inner side of the multiple H-shaped connecting plates 15. A first rounded corner wiring protection frame 17 and a second rounded corner wiring protection frame 18 are respectively connected to the ends of the multiple second movable rods 16 away from the H-shaped connecting plate 15. Wiring holes 10 are provided on the inner sides of the lower wiring board 7 and the upper wiring board 9. Multiple clamping holes 19 are provided on the top of the two L-shaped support plates 6. An installation block 21 is installed at the bottom inside the heat sink 5. A telescopic rod 22 is connected to the top of the installation block 21. A spring 23 is connected to the outer wall of the telescopic rod 22. An elastic clamping ball 24 is connected to the top of the telescopic rod 22. A heat dissipation mesh plate 20 is installed in the middle of the top of the heat sink 5. Slider 4 slides on the inner side of guide rail 3. The top of heat sink 5 contacts the bottom of L-shaped support plate 6. L-shaped support plate 6 is fixedly connected to lower wiring plate 7 via connecting rod. Lower wiring plate 7 is fixedly connected to reinforcing frame 8. Reinforcing frame 8 and upper wiring plate 9 are both fixedly connected to lower wiring plate 7 via connecting rod. Lower wiring plate 7 is rotatably connected to multiple first movable rods 11. First movable rods 11 are rotatably connected to reinforcing rod 12. Limiting sleeve 13 is sleeved on the outer wall of reinforcing rod 12. Rounded corner positioning block 14 is rotatably connected to reinforcing rod 12. Multiple rounded corner positioning blocks 14 are rotatably connected to multiple second movable rods 16. Multiple second movable rods 16 are rotatably connected to multiple first rounded corner wiring protection frames 17 and second rounded corner wiring protection frames 18. The elastic locking ball 24 passes through the top of the L-shaped support plate 6 and engages with the inside of the locking hole 19. The elastic locking ball 24 is rotatably connected to the telescopic rod 22, and the telescopic rod 22 is rotatably connected to the mounting block 21. Specifically, when wiring, maintenance, or cable replacement is required, the operator only needs to open the sealed door 2 and pull the entire heat dissipation box 5 and terminal block assembly outward along the guide rail 3. This transfers the wiring work, which was originally confined to the narrow space inside the box, to an open and well-lit environment outside the box, greatly improving the visibility, convenience, and safety of the operation and significantly improving work efficiency. The first movable rod 11, fixed on the lower terminal block 7, is connected to the reinforcing rod 12. The rounded corner positioning block 14 fitted on it is the first contact of the cable. The rounded corner design avoids the cutting damage of the cable by the sharp corner. At the same time, the limiting sleeve 13 ensures that the position of the rounded corner positioning block 14 on the reinforcing rod 12 is stable, so that it can perform preliminary physical positioning and slight stress absorption of the cable. The rounded corner positioning block 14 is connected to the H-shaped connecting plate 15. The H-shaped structure itself has a certain elastic deformation space. When the cable is subjected to external force, the force will be transmitted to the H-shaped connecting plate 15 through the rounded corner positioning block 14. Its structure can effectively disperse the concentrated stress. The H-shaped connecting plate 15 is connected to multiple first rounded corner wiring protection frames 17 and second rounded corner wiring protection frames 18 through the second movable rod 16. These protection frames provide independent, semi-enclosed channels for the cable, which not only further guides and regulates the cable routing, but more importantly, their frame structure provides sufficient "buffer space" for the cable. When the cable undergoes axial or radial displacement, the rounded inner wall of the protection frame will contact it. Through the micro-rotation of the second movable rod 16, the displacement energy is flexibly absorbed and buffered, preventing the stress from being directly transmitted to the connection terminal of the wiring hole 10, thereby achieving deep protection and precise positioning of the cable terminal. The heat dissipation box 5 itself is a hollow structure with a heat dissipation mesh plate 20 embedded in the center of its top, which allows the internal space of the heat dissipation box 5 to be directly connected with the external environment. When the terminal block assembly is pushed into the power metering box 1 to work, the heat generated by the current on the lower terminal block 7 and the upper terminal block 9 will be conducted to the heat dissipation box 5 through the L-shaped support plate 6. After the heat accumulates inside the heat dissipation box 5, it will be quickly dissipated into the surrounding air through the mesh of the heat dissipation mesh plate 20 at the top, forming natural air convection, which effectively reduces the temperature of the terminal block and the surrounding environment, and ensures that the metering equipment operates stably and accurately at a suitable temperature. At the bottom of the heat sink 5, the mounting block 21 is equipped with an elastic clamping unit consisting of a telescopic rod 22, a spring 23, and an elastic clamping ball 24. When the L-shaped support plate 6 needs to be installed, simply place it at the predetermined position on top of the heat sink 5 and apply downward pressure. The flat surface at the bottom of the L-shaped support plate 6 will first contact the elastic clamping ball 24. As the pressure increases, the elastic clamping ball 24 will compress the telescopic rod 22 to retract and compress the spring 23. When the clamping hole 19 on the L-shaped support plate 6 is aligned with the position of the elastic clamping ball 24, under the restoring force of the spring 23, the telescopic rod 22 will quickly pop out, causing the elastic clamping ball 24 to accurately engage inside the clamping hole 19, thereby achieving instantaneous locking and fixation of the L-shaped support plate 6. For disassembly, simply use a tool or your finger to press the elastic clamping ball 24 inward to disengage it from the clamping hole 19, and the L-shaped support plate 6 and its wiring board assembly can be easily removed.

[0018] It should be noted that this utility model is a power metering wiring device for power engineering. In use, firstly, align the entire wiring protection assembly, including the slider 4 and heat sink 5, with the slider 4 and embed it into the guide rail 3 on the inner wall of the power metering box 1, ensuring smooth sliding. Then, align the L-shaped support plate 6 with the top of the heat sink 5 and press down firmly until the elastic locking ball 24 inside the heat sink 5 springs into the locking hole 19 at the bottom of the L-shaped support plate 6, completing the quick installation of the L-shaped support plate 6. At this time, the lower wiring plate 7, the reinforcing frame 8, and the upper wiring plate 9 are fixed in place with the L-shaped support plate 6. When wiring is required, the operator opens the sealing door 2 of the power metering box 1, holds the edge of the heat sink 5 or the lower wiring plate 7, and smoothly inserts the entire wiring assembly along the guide rail 3. Pull each component outwards until it is fully exposed outside the box. Pass the cables to be connected sequentially through the wiring holes 10 on the lower wiring plate 7 and the upper wiring plate 9. During the threading process, place the cables in the grooves of the rounded corner positioning blocks 14 for initial positioning and fixation. Then, guide the cables into the first rounded corner wiring protection frame 17 or the second rounded corner wiring protection frame 18. Utilize the internal space of the protection frame to organize the cable path and ensure it is not subjected to external pressure. Finally, secure the cables at the wiring holes 10. During this process, if the cables are accidentally pulled, the force will be effectively buffered by the protection frame and the H-shaped connecting plate 15, and will not directly act on the wiring terminals. After wiring is completed, push the entire component back into the power metering box 1 along the guide rail 3 and close the sealing door 2. The device starts operating. The heat generated by the wiring is conducted to the heat dissipation box 5 through the L-shaped support plate 6 and dissipated through the top heat dissipation mesh plate 20, achieving continuous and effective heat dissipation. When it is necessary to replace or repair components such as the lower terminal block 7, first pull the assembly out of the box. Then, using a flathead screwdriver or your finger, press down on the elastic locking ball 24 at the locking hole 19 on the L-shaped support plate 6, so that it retracts against the elastic force of the spring 23. At this time, the lock between the L-shaped support plate 6 and the heat sink 5 is released, and it can be easily removed together with the lower terminal block 7 and the upper terminal block 9. After replacing the new terminal block assembly, according to the installation method in Embodiment 1, re-clamp the L-shaped support plate 6 onto the heat sink 5, and push the entire assembly back into the box to quickly complete the maintenance work.

[0019] The foregoing has shown and described the basic principles, main features, and advantages of this utility model. Those skilled in the art should understand that this utility model is not limited to the above embodiments. The embodiments and descriptions in the specification are merely illustrative of the principles of this utility model. Various changes and modifications can be made to this utility model without departing from its spirit and scope, and all such changes and modifications fall within the scope of the claims. The scope of protection of this utility model is defined by the appended claims and their equivalents.

Claims

1. A power metering wiring device for power engineering, comprising a power metering box (1) and a sealed door (2), characterized in that: The inner side of the power metering box (1) is provided with wiring protection components; The wiring protection assembly includes guide rails (3) at both ends of the inner side of the power metering box (1), sliders (4) connected to the inner sides of the two guide rails (3), a heat sink (5) connected to the end of the slider (4) away from the guide rails (3), an L-shaped support plate (6) connected to the top of the heat sink (5), a lower wiring plate (7) connected to the top of the L-shaped support plate (6), a reinforcing frame (8) connected to the top of the lower wiring plate (7), upper wiring plates (9) connected to both ends of the top of the reinforcing frame (8), and multiple first movable rods (11) at both ends of the inner side of the lower wiring plate (7). A reinforcing rod (12) is connected to the outer wall of the first movable rod (11). A limiting sleeve (13) is sleeved on the outer wall of the reinforcing rod (12). A rounded corner positioning block (14) is sleeved on the end of the outer wall of the reinforcing rod (12) near the limiting sleeve (13). An H-shaped connecting plate (15) is connected to the outer wall of the rounded corner positioning block (14). A second movable rod (16) is connected to one end of the inner side of each of the multiple H-shaped connecting plates (15). A first rounded corner wiring protection frame (17) and a second rounded corner wiring protection frame (18) are respectively connected to the end of each of the multiple second movable rods (16) away from the H-shaped connecting plate (15).

2. The power metering wiring device for power engineering according to claim 1, characterized in that: Wiring holes (10) are provided on the inner sides of the lower wiring plate (7) and the upper wiring plate (9). Multiple clamping holes (19) are provided on the top of the two L-shaped support plates (6). An installation block (21) is installed at the bottom inside the heat sink (5). A telescopic rod (22) is connected to the top of the installation block (21). A spring (23) is connected to the outer wall of the telescopic rod (22). An elastic clamping ball (24) is connected to the top of the telescopic rod (22). A heat dissipation mesh plate (20) is installed in the middle of the top of the heat sink (5).

3. The power metering wiring device for power engineering according to claim 1, characterized in that: The slider (4) is slidably connected to the inner side of the guide rail (3), the top of the heat sink (5) is in contact with the bottom of the L-shaped support plate (6), and the L-shaped support plate (6) is fixedly connected to the lower wiring plate (7) by a connecting rod.

4. A power metering wiring device for power engineering according to claim 1, characterized in that: The lower wiring plate (7) is fixedly connected to the reinforcing frame (8). The reinforcing frame (8) and the upper wiring plate (9) are both fixedly connected to the lower wiring plate (7) through connecting rods. The lower wiring plate (7) is rotatably connected to a plurality of the first movable rods (11).

5. A power metering wiring device for power engineering according to claim 1, characterized in that: The first movable rod (11) is rotatably connected to the reinforcing rod (12), the limiting sleeve (13) is sleeved on the outer wall of the reinforcing rod (12), and the rounded corner positioning block (14) is rotatably connected to the reinforcing rod (12).

6. A power metering wiring device for power engineering according to claim 1, characterized in that: Multiple rounded corner positioning blocks (14) are rotatably connected to multiple second movable rods (16), and multiple second movable rods (16) are rotatably connected to multiple first rounded corner wiring protection frames (17) and second rounded corner wiring protection frames (18).

7. A power metering wiring device for power engineering according to claim 2, characterized in that: The elastic locking ball (24) passes through the top of the L-shaped support plate (6) and engages with the inside of the locking hole (19). The elastic locking ball (24) is rotatably connected to the telescopic rod (22), and the telescopic rod (22) is rotatably connected to the mounting block (21).

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