A power monitoring device that is easy to maintain

Abstract

This utility model discloses a power monitoring instrument that is easy to maintain, relating to the field of electrical technology. The instrument includes a fixed frame and a main body. Limiting grooves and handles are provided on both sides of the main body. Movable openings are provided at the top and bottom of the handles. A movable plate is connected to the inner side of the movable opening via a spring, and a linkage rod is connected to the inner side of the movable plate. By incorporating the linkage rod, handle, spring, movable plate, limiting groove, limiting block, and movable opening, the operator only needs to hold the handle and linkage rod with both hands and apply gripping force. The linkage rod will drive the movable plate to slide against the spring force, causing the limiting block to quickly disengage from the limiting groove of the fixed frame, thus pulling out the monitoring instrument for disassembly. The entire process requires no tools and only a simple gripping action. Compared to the cumbersome operation of unscrewing multiple screws one by one in traditional bolt fixing methods, this significantly simplifies the disassembly steps and saves maintenance preparation time.

Description

Technical Field

[0001] This utility model relates to the field of electrical technology, specifically to a power monitoring device that is easy to maintain. Background Technology

[0002] Power monitoring instruments are designed to meet the power monitoring needs of power systems, industrial and mining enterprises, public facilities, intelligent buildings, and other places. They can accurately measure and analyze important parameters such as voltage, current, and power to monitor and protect the operating status of power equipment. They mainly consist of sensors, signal processors, displays, and communication modules.

[0003] Existing power monitoring instruments require regular maintenance by operators during long-term use to prevent malfunctions such as short circuits and data distortion caused by aging wiring and loose components. However, traditional installation methods rely heavily on bolt fixing, requiring the removal of multiple bolts one by one during disassembly, which is cumbersome and time-consuming, especially in confined spaces such as distribution boxes, where limited space further hinders maintenance efficiency. Although some patents have addressed this issue, such as the multi-functional power monitoring instrument with patent number CN218848245U that facilitates installation by using sliding rails and fastening devices to quickly detach the monitor from the mounting slot, simplifying the external disassembly process to some extent, these improvements often only involve removing the monitor as a whole from its installation location without modifying the outer shell structure of the power monitoring instrument. Therefore, internal maintenance of the power monitoring instrument remains inconvenient. Furthermore, since maintenance is mostly conducted on-site, the limited space and time (evening) may make it difficult for staff to see the internal structure of the power monitoring instrument, further complicating maintenance and impacting efficiency. Utility Model Content

[0004] Therefore, the purpose of this utility model is to provide a power monitoring instrument that is easy to maintain, so as to solve the technical problems mentioned in the background art.

[0005] To achieve the above objectives, this utility model provides the following technical solution: a power monitoring device that is easy to maintain, comprising a fixed frame and a monitoring device body. The monitoring device body has limiting grooves and handles on both sides. The handles have movable openings at the top and bottom. A movable plate is connected to the inner side of the movable opening via a spring, and a linkage rod is connected to the inner side of the movable plate. A limiting block is fixed on the other side of the movable plate. A maintenance plate is connected to the top of the monitoring device body via a damping pivot. A fixing clip is connected to one side of the top of the monitoring device body via a connecting shaft. A receiving groove is provided at the bottom of the maintenance plate, and a battery box is installed inside the receiving groove. A lighting lamp is connected to one side of the battery box via a universal flexible hose.

[0006] Furthermore, the main body of the monitor has heat dissipation holes on both sides, and the fixed frame has heat dissipation vents on both sides, with the positions of the heat dissipation holes and the heat dissipation vents corresponding to each other.

[0007] By adopting the above technical solution, the heat dissipation holes on both sides of the main body of the monitor correspond to the heat dissipation vents on both sides of the fixed frame, forming a through heat dissipation channel. This allows the heat from the main body to be discharged first through the heat dissipation holes and vents, and then quickly dissipated in conjunction with the heat dissipation system built into the power cabinet.

[0008] Furthermore, a mounting frame is fixed to the outer surface of the fixed frame, and a mounting hole is passed through the outer surface of the mounting frame.

[0009] By adopting the above technical solution, the mounting frame provides a stable mounting carrier for the overall structure, and the mounting holes through its outer surface can be used to securely install the frame in the preset position of the power cabinet door with fasteners such as bolts.

[0010] Furthermore, a female interface is installed on the back of the fixed frame, and a male plug is provided on the back of the monitor, and the male plug is compatible with the female interface.

[0011] By adopting the above technical solution, the circuit connection can be automatically completed when the main body of the monitor is installed in the fixed frame, without the need for manual wiring. This design simplifies the circuit connection steps during installation, avoids the risk of wiring errors, and, together with the quick disassembly and assembly structure, allows the overall removal and placement as well as the circuit switching to be completed simultaneously, improving operational efficiency.

[0012] Furthermore, there are four limiting blocks and four limiting slots, with two sets of two blocks in total, and the limiting blocks and limiting slots are adapted to each other.

[0013] By adopting the above technical solution, the group adaptation design not only ensures the stable engagement of the limit block and the limit groove, preventing the monitor from shaking in the fixed frame, but also allows it to simultaneously disengage from the limit during disassembly. Combined with the linkage structure, it enables smooth picking and putting, taking into account both connection firmness and ease of operation.

[0014] Furthermore, a button battery is installed inside the battery box, and a switch button is installed at the bottom of the battery box. The button battery is electrically connected to the switch button and the light bulb, respectively.

[0015] By adopting the above technical solution, the button batteries in the battery box are electrically connected to power the switch button and the lighting lamp respectively. The switch button at the bottom of the battery box can directly control the circuit to turn the lighting on and off, realizing independent power supply for the lighting system without relying on an external power source. The switch operation is intuitive and convenient. Moreover, the button batteries are small in size and do not occupy too much space inside the monitor, ensuring the compactness of the structure. The lighting lamp is a 0.15W low-power LED lamp, which is sufficient to meet the clarity requirements of close-range (20-40cm) maintenance, and the light is soft and not dazzling.

[0016] Furthermore, a sealing layer is provided at the edge of the repair plate.

[0017] By adopting the above technical solution, the sealing layer at the edge of the maintenance board fits tightly against the main body of the monitor when the maintenance board is closed, which can effectively prevent external dust, moisture and other impurities from entering; it not only protects the internal components from environmental corrosion, but also avoids the accumulation of impurities from affecting circuit performance, thereby improving the stability and service life of the equipment.

[0018] Furthermore, the spring is provided in multiple sets, and all sets of the spring are made of manganese steel.

[0019] By adopting the above technical solution, the setting of multiple sets of springs can make the elastic force distribution more uniform, ensuring that the force is stable when the moving plate slides and the reset action is more reliable. Moreover, it is made of manganese steel, whose high strength and excellent elasticity characteristics can ensure that the spring is not prone to plastic deformation during long-term repeated deformation, with outstanding fatigue resistance, and can maintain stable elastic force output for a long time, effectively extending the service life of the linkage structure, and taking into account both the smoothness of operation and the durability of the overall structure.

[0020] Furthermore, the main body of the monitor is provided with slide rails on both sides, and the inner wall of the fixed frame is provided with a slide groove. The main body of the monitor is detached from the fixed frame through the slide rails and slide grooves.

[0021] By adopting the above technical solution, the slide rails on both sides of the main body of the monitor are matched with the slide grooves on the inner wall of the fixed frame to form a sliding guide structure, which enables the main body of the monitor to slide stably along the slide groove during the picking and placing process, avoiding jamming caused by offset. This design not only provides precise guidance for disassembly and assembly, ensuring that the limit block and the limit groove can be accurately aligned, but also makes the relative movement of the main body of the monitor and the fixed frame more stable.

[0022] In summary, the present invention has the following main advantages:

[0023] 1. This utility model is equipped with a linkage rod, handle, spring, movable plate, limiting groove, limiting block and movable opening. The operator only needs to hold the handle and linkage rod with both hands and apply gripping force. The linkage rod drives the movable plate to slide against the spring force, so that the limiting block can quickly disengage from the limiting groove of the fixed frame. The monitor can be pulled out to complete the disassembly. The whole process does not require any tools and can be achieved with just simple gripping action. Compared with the tedious operation of unscrewing multiple screws one by one in the traditional bolt fixing method, it greatly simplifies the disassembly steps and saves maintenance preparation time.

[0024] 2. This utility model, by incorporating a connecting shaft, a fixing clip, a damping rotating shaft, and a maintenance plate, allows the maintenance plate to be easily opened after the power monitor is removed from the fixed frame. The operator only needs to rotate the fixing clip, which, with the cooperation of the connecting shaft, changes its angle and releases pressure on the maintenance plate. The damping rotating shaft then allows for easy opening of the maintenance plate without disassembling any screws or fasteners. This design completely eliminates the constraints of traditional monitors where the casing and main body are fixed by multiple screws, saving the tedious steps of unscrewing each screw. It also allows for direct exposure of internal wiring and component maintenance, effectively improving the convenience and efficiency of internal component inspection and wiring troubleshooting.

[0025] 3. This utility model, through its storage slot, lighting, universal hose, and switch button, allows workers to quickly turn on the lighting when the maintenance plate is held vertically by the damping shaft. The multi-angle bending characteristics of the universal hose allow for flexible adjustment of the lighting direction, ensuring precise focus on internal wiring, components, and other areas requiring maintenance. This significantly improves the visibility of the internal structure and eliminates the need for workers to wear headlamps during maintenance. Furthermore, after maintenance, the universal hose and lighting can be stored together in the storage slot, saving internal installation space and preventing protruding parts from interfering with the assembly of other components, further enhancing the overall structural rationality and ease of use of the equipment. Attached Figure Description

[0026] Figure 1 This is a schematic diagram of the structure of this utility model;

[0027] Figure 2 This is a schematic diagram of the back structure of the fixing frame of this utility model;

[0028] Figure 3 This is a schematic diagram of the fixed frame structure of this utility model;

[0029] Figure 4 This is a schematic diagram of the main structure of the monitoring device of this utility model;

[0030] Figure 5 This is a schematic diagram of the cross-sectional structure of the main monitoring unit of this utility model;

[0031] Figure 6 This is a schematic diagram of the cross-sectional structure of the handle of this utility model;

[0032] Figure 7 This is a schematic diagram of the repair panel structure of this utility model;

[0033] Figure 8 This is a schematic diagram of the battery box structure of this utility model.

[0034] In the diagram: 1. Fixed frame; 2. Monitor body; 3. Mounting frame; 4. Handle; 5. Heat dissipation vent; 6. Female interface; 7. Limiting groove; 8. Male plug; 9. Maintenance board; 10. Damping shaft; 11. Fixing clip; 12. Heat dissipation hole; 13. Movable port; 14. Spring; 15. Movable plate; 16. Linkage rod; 17. Limiting block; 18. Connecting shaft; 19. Battery box; 20. Universal flexible hose; 21. Lighting light; 22. Switch button; 23. Receiving groove; 24. Slide rail; 25. Slide channel. Detailed Implementation

[0035] The technical solutions of the present invention will be clearly and completely described below with reference to the accompanying drawings. The embodiments described below with reference to the accompanying drawings are exemplary and are only used to explain the present invention, and should not be construed as limiting the present invention.

[0036] The embodiments of this utility model will be described below based on its overall structure.

[0037] Example 1: A power monitoring device that is easy to maintain, such as... Figures 1-8As shown, the device includes a fixed frame 1 and a monitoring unit 2. A mounting frame 3 is fixed to the outer surface of the fixed frame 1. Mounting holes penetrate the outer surface of the mounting frame 3, providing a stable mounting carrier for the overall structure. The mounting holes allow the fixed frame 1 to be securely installed in a predetermined position on the power cabinet door using bolts or other fasteners. A female interface 6 is installed on the back of the fixed frame 1, and the wiring of the female interface 6 connects to the cables inside the power cabinet. A male plug 8 is provided on the back of the monitoring unit, and the male plug 8 is compatible with the female interface 6. When the monitoring unit 2 is installed into the fixed frame 1, the circuit connection can be automatically completed without manual wiring. This design... The design simplifies the circuit connection steps during installation, avoiding the risk of wiring errors. Simultaneously, the quick-release structure allows for simultaneous removal and placement of the entire unit and simultaneous circuit switching, improving operational efficiency. The main body 2 of the monitor has limit grooves 7 and handles 4 on both sides. The top and bottom of the handles 4 have movable openings 13. A movable plate 15 is connected to the inner side of the movable opening 13 via a spring 14, and a linkage rod 16 is connected to the inner side of the movable plate 15. A limit block 17 is fixed to the other side of the movable plate 15. A maintenance plate 9 is connected to the top of the main body 2 of the monitor via a damping shaft 10. A sealing layer is provided at the edge of the maintenance plate 9. The sealing layer of the device is tightly fitted to the main body 2 of the monitor when the maintenance board 9 is closed, effectively preventing the intrusion of external dust, moisture and other impurities. This protects the internal components from environmental corrosion and prevents the accumulation of impurities from affecting circuit performance, thereby improving the stability and service life of the equipment. A fixing clip 11 is connected to the top side of the main body 2 of the monitor via a connecting shaft 18. The bottom of the maintenance board 9 has a receiving groove 23, and a battery box 19 is installed inside the receiving groove 23. A button battery is installed inside the battery box 19, and a switch button 22 is installed at the bottom of the battery box 19. The button battery is electrically connected to the switch button 22 and the lighting lamp 21. The button batteries inside the battery box 19 are electrically connected to power the switch button 22 and the lighting lamp 21 respectively. The switch button 22 at the bottom of the battery box 19 can directly control the circuit to turn the lighting on and off, realizing independent power supply for the lighting system without relying on an external power source. The switch operation is intuitive and convenient. Moreover, the button batteries are small in size and do not occupy too much space inside the monitor, ensuring the compactness of the structure. The lighting lamp 21 is a 0.15W low-power LED lamp, which is sufficient to meet the clarity requirements of close-range (20-40cm) maintenance, and the light is soft and not dazzling. The lighting lamp 21 is connected to one side of the battery box 19 through a universal flexible hose 20.

[0038] See Figures 1-5In the above embodiment, heat dissipation holes 12 are provided on both sides of the main body 2 of the monitoring device, and heat dissipation vents 5 are provided on both sides of the fixing frame 1. The positions of the heat dissipation holes 12 and the heat dissipation vents 5 are corresponding. The heat dissipation holes 12 on both sides of the main body 2 of the monitoring device and the heat dissipation vents 5 on both sides of the fixing frame 1 form a through heat dissipation channel, so that the heat of the main body is first discharged through the heat dissipation holes 12 and the heat dissipation vents 5, and then quickly dissipated with the heat dissipation system of the power cabinet.

[0039] See Figure 3 , Figure 4 and Figure 6 In the above embodiment, there are four limiting blocks 17 and four limiting grooves 7, with two groups of two in total. The limiting blocks 17 and the limiting grooves 7 are adapted to each other. The group adaptation design not only ensures the stable engagement of the limiting blocks 17 and the limiting grooves 7, preventing the monitor from shaking in the fixed frame 1, but also allows them to be disengaged synchronously during disassembly. The linkage structure enables smooth picking and putting, taking into account both connection firmness and operation convenience.

[0040] See Figure 1 , Figure 2 , Figure 4 and Figure 6 In the above embodiments, the spring 14 is provided in multiple sets, and all sets of spring 14 are made of manganese steel. The arrangement of multiple sets of spring 14 can make the elastic force distribution more uniform, ensuring that the sliding plate 15 is subjected to force smoothly and the reset action is more reliable. Moreover, the high strength and excellent elasticity of the manganese steel material can ensure that the spring 14 is not prone to plastic deformation during long-term repeated deformation, has outstanding fatigue resistance, can maintain stable elastic force output for a long time, effectively extend the service life of the linkage structure, and take into account both the smoothness of operation and the durability of the overall structure.

[0041] Example 2: To ensure stable installation and precise alignment of the monitoring device body with the fixed frame, Example 2 is an improvement upon Example 1. (See attached document.) Figures 3-4 The monitoring device body 2 is provided with slide rails 24 on both sides, and the inner wall of the fixed frame 1 is provided with a slide groove 25. The monitoring device body 2 is detached from the fixed frame 1 through the slide rails 24 and the slide groove 25. The slide rails 24 on both sides of the monitoring device body 2 are adapted to the slide groove 25 on the inner wall of the fixed frame 1 to form a sliding guide structure, so that the monitoring device body 2 can slide stably along the slide groove 25 during the picking and putting process, avoiding jamming caused by offset. This design not only provides precise guidance for the disassembly and assembly actions, ensuring that the limiting block 17 and the limiting groove 7 can be accurately aligned, but also makes the relative movement of the monitoring device body 2 and the fixed frame 1 more stable.

[0042] The implementation principle of this utility model is as follows: During installation, the staff first installs the fixing frame 1 on the reserved opening of the power cabinet door using the mounting frame 3, and uses the mounting holes and bolts to complete the fixation; then the staff holds the handles 4 on both sides of the monitor body 2 and pushes it into the fixing frame 1 along the slide rail 24 and slide groove 25. During the insertion process, the movable plate 15 is squeezed by the inner wall of the fixing frame 1, which causes the limiting block 17 to contract, and the spring 14 is in a compressed state; when the monitor body 2 is fully pushed in and the male plug 8 and female interface 6 are precisely connected, the staff releases the handles 4, and the spring 14 pushes the movable plate 15 to reset under the action of the reset elastic force, so that the limiting block 17 is accurately inserted into the limiting groove 7 of the fixing frame 1, thereby achieving mechanical fixation;

[0043] After the main body 2 of the monitoring instrument is connected to the power system, it begins to work. Internally, voltage and current sensors collect real-time voltage and current signals from the lines within the power cabinet. These signals are processed by a filtering circuit and then transmitted to a central processing module (such as an MCU). The processing module calculates parameters such as power and frequency using a preset algorithm, and then transmits the data to a display screen for real-time display via a drive circuit. Simultaneously, an internal communication module (such as an RS485 module) can upload the monitoring data to a backend system, enabling real-time monitoring and recording of power parameters (the core internal structure of the power monitoring instrument is existing technology and is not shown in the attached diagram). During daily operation, the heat generated by the main body 2 of the monitoring instrument is dissipated through heat dissipation holes 12 and vents 5, in conjunction with the power cabinet's cooling system, to prevent high temperatures from affecting the operational stability of components such as sensors and processing modules.

[0044] During maintenance, the operator holds handle 4 and linkage rod 16 with both hands, applying pressure to cause linkage rod 16 to drive movable plate 15 to slide against the elastic force of spring 14. Limit block 17 disengages from limit groove 7, and the monitor body 2 is pulled out along slide rail 24 and slide groove 25, separating male plug 8 from female interface 6 to achieve power disconnection. Then, the fixing clip 11 is rotated to disengage it from maintenance plate 9, and maintenance plate 9 is opened through damping shaft 10 and kept in a vertical position. Pressing switch button 22 turns on the lighting 21, and the 0.15W LED light powered by button battery is adjusted in angle through universal hose 20 to illuminate the room. The internal sensors, processing modules, and circuit interfaces facilitate the staff's troubleshooting of problems such as aging circuits, loose sensors, and loose solder joints. After maintenance, the lighting lamp 21 and the universal hose 20 are stored in the receiving slot 23, the maintenance plate 9 is closed and the fixing clip 11 is rotated to fix it, and then the handle 4 is held to push the main body of the monitor 2 along the slide rail 24 and the slide groove 25 into the fixing frame 1. The spring 14 is reset and pushes the limit block 17 to re-lock into the limit groove 7. The male plug 8 is connected to the female interface 6 to connect the power supply, and the main body of the monitor 2 resumes the work of collecting, processing and displaying power parameters.

[0045] Although embodiments of the present invention have been shown and described, these specific embodiments are merely explanations of the present invention and are not intended to limit the invention. The specific features, structures, materials, or characteristics described may be combined in any suitable manner in one or more embodiments or examples. After reading this specification, those skilled in the art may make modifications, substitutions, and variations to the embodiments as needed without departing from the principles and spirit of the present invention, provided that such modifications, substitutions, and variations are within the scope of the claims of the present invention and are protected by patent law.

Claims

1. A power monitor for easy maintenance, comprising a fixed frame (1) and a monitor body (2), characterized in that: The main body (2) of the monitor is provided with limiting grooves (7) and handles (4) on both sides. The top and bottom of the handles (4) are provided with movable openings (13). The inner side of the movable openings (13) is connected to a movable plate (15) by a spring (14), and the inner side of the movable plate (15) is connected to a linkage rod (16). The other side of the movable plate (15) is fixed with a limiting block (17). The top of the main body (2) of the monitor is connected to a maintenance plate (9) by a damping shaft (10). The top side of the main body (2) of the monitor is connected to a fixing clip (11) by a connecting shaft (18). The bottom of the maintenance plate (9) is provided with a receiving groove (23), and a battery box (19) is installed inside the receiving groove (23). One side of the battery box (19) is connected to a lighting lamp (21) by a universal hose (20).

2. The power monitor for ease of access according to claim 1, wherein: The main body (2) of the monitor has heat dissipation holes (12) on both sides, and the fixed frame (1) has heat dissipation vents (5) on both sides, and the positions of the heat dissipation holes (12) and the heat dissipation vents (5) are corresponding.

3. The power monitor of claim 1, wherein: The outer surface of the fixed frame (1) is fixed with a mounting frame (3), and the outer surface of the mounting frame (3) has a through mounting hole.

4. The power monitor of claim 1, wherein: The back of the fixed frame (1) is equipped with a female interface (6), and the back of the monitor is equipped with a male plug (8), which is compatible with the female interface (6).

5. The power monitor of claim 1, wherein: The limiting block (17) and the limiting groove (7) are provided in four groups of two, and there are two groups in total. The limiting block (17) and the limiting groove (7) are adapted to each other.

6. The power monitor of claim 1, wherein: The battery box (19) is equipped with a button battery, and a switch button (22) is installed at the bottom of the battery box (19). The button battery is electrically connected to the switch button (22) and the light (21) respectively.

7. The power monitor of claim 1, wherein: The edge of the repair panel (9) is provided with a sealing layer.

8. The power monitor of claim 1, wherein: The spring (14) is provided in multiple sets, and all sets of the spring (14) are made of manganese steel.

9. The power monitor of claim 1, wherein: The main body (2) of the monitor is provided with slide rails (24) on both sides, and the inner wall of the fixed frame (1) is provided with a slide groove (25). The main body (2) of the monitor is detached from the fixed frame (1) through the slide rails (24) and the slide groove (25).

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