Modular electric energy metering box

Abstract

This application relates to a modular electricity metering box, belonging to the technical field of electricity metering. It includes a box body, inside which an electricity meter is installed. Two first slide rails and two second slide rails are fixedly connected to the inner wall of the box body. A first U-shaped frame is provided above the electricity meter. This application uses rollers, gears, racks, and other components to clamp and fix the electricity meter between first and second clamping arms. When the electricity meter needs maintenance, pulling the meter moves the first and second clamping arms. At this time, the first and second U-shaped frames move along their corresponding first and second slide rails. Through the meshing of the gears and racks and the rolling of the rollers and second slide rails, the electricity meter can be directly pulled to the outside of the box for maintenance, eliminating the need for operation within the confined space inside the box. This simple and quick operation reduces maintenance difficulty and improves maintenance efficiency. Furthermore, the entire pulling process consumes no electricity, which is beneficial for energy conservation and environmental protection.

Description

Technical Field

[0001] This invention relates to the field of electricity metering, and in particular to a modular electricity metering box. Background Technology

[0002] With the intelligent upgrading of the power system and the diversified development of user electricity demand, various demands have emerged, such as distributed photovoltaic grid-connected metering and smart home electricity data monitoring. The role of the electricity metering box has been upgraded from a single metering carrier to a key node connecting the power grid and users. It not only needs to accurately complete basic electricity metering, but also needs to carry out additional functions such as real-time data transmission and online monitoring of equipment status. This makes the requirements for its installation and maintenance convenience, modular adaptability and energy saving and environmental protection increasingly higher.

[0003] However, in existing traditional electricity metering boxes, it has been found that electricity meters are usually fixed inside the box. Due to the limited operating space inside the box, maintenance personnel have to complete disassembly, assembly, and debugging operations in a limited space, which is difficult to operate and has low maintenance efficiency. In addition, the device lacks a quick positioning structure, which means that the meter position needs to be manually adjusted repeatedly after maintenance, which is time-consuming and labor-intensive. The positioning mechanism, which is partially driven by electricity, also increases energy consumption and does not meet the requirements of energy conservation and environmental protection. Summary of the Invention

[0005] Technical problems to be solved

[0006] The purpose of this application is to provide a modular electricity metering box to solve the problems mentioned in the background art.

[0007] This application provides a modular electricity metering box with the following technical solution: It includes a box body, inside which an electricity meter is installed. Two first slide rails and two second slide rails are fixedly connected to the inner wall of the box body. A first U-shaped frame is provided above the electricity meter, and the first U-shaped frame is slidably disposed within the grooves of the two first slide rails. A second U-shaped frame is provided below the electricity meter, and the second U-shaped frame is slidably disposed within the grooves of the two second slide rails. Two first clamping arms are fixedly connected to the inner wall of the second U-shaped frame, and the upper surface of each first clamping arm has… The first U-shaped frame has two adjusting screws threadedly connected to its inner wall. Each adjusting screw has a second clamping arm rotatably connected to its bottom end. The bottom surface of each second clamping arm abuts against the upper surface of the electricity meter. The first U-shaped frame has two gears rotatably connected to its inner wall. Each first slide rail has a rack fixedly connected to its inner side wall. Each gear meshes with a corresponding rack.

[0008] By adopting the above technical solution, the first slide rail and the second slide rail are installed on the inner wall of the housing to fix the first slide rail and the second slide rail. A first U-shaped bracket is set above the electricity meter and slidably mounted on the inner wall of the first slide rail to limit the movement of the first U-shaped bracket. A second U-shaped bracket is set below the electricity meter and slidably mounted on the inner wall of the second slide rail to limit the movement of the second U-shaped bracket. A first clamping arm is fixed to the second U-shaped bracket and abuts against the bottom surface of the electricity meter, allowing the first clamping arm to... The electricity meter is supported by mounting rods installed on the left and right sides of the second U-shaped frame. Rotating rollers are installed on the outer surface of the mounting rods, contacting the inner wall of the corresponding second slide rails. This allows the rollers to roll along the second slide rails, supporting the second U-shaped frame and improving its smoothness during sliding, preventing jamming. An adjusting screw is installed on the inner wall of the first U-shaped frame. When the operator rotates the adjusting screw, it can rise and fall along the first U-shaped frame. A second clamping arm is located at the bottom of the adjusting screw. Adjustment... The rotatable connection between the screw and the second clamping arm allows the corresponding second clamping arm to rise and fall when the adjusting screw is raised or lowered. When the operator rotates the adjusting screw to lower the second clamping arm, the second clamping arm abuts against the upper surface of the energy meter. Through the cooperation of the first and second clamping arms, the energy meter is clamped and fixed. A gear is installed on the inner wall of the first U-shaped frame. The rotational connection between the first U-shaped frame and the gear limits its movement. A rack is installed on the inner sidewall of the groove corresponding to the first slide rail, positioning the rack and connecting the gear with... The corresponding rack and pinion meshing allows the gear to move along the rack. When the operator needs to inspect the electricity meter, they can directly pull the electricity meter to move the first and second clamping arms. At this time, the first and second U-shaped frames move accordingly. Through the meshing of the gear and rack, combined with the rolling of the roller and the second slide rail, the electricity meter can be directly pulled to the outside of the box. There is no need to operate in the narrow space inside the box. The operation is simple and quick, reducing the difficulty of inspection and maintenance, improving maintenance efficiency, and the entire stretching process does not consume electricity, which is conducive to energy conservation and environmental protection.

[0009] Preferably, each of the second slide rails has a retainer fixedly connected to its opposite side, the upper surface of each retainer is fixedly connected to the bottom surface of the corresponding first slide rail, and each retainer has two positioning holes on its opposite side.

[0010] By adopting the above technical solution, the retainer is installed on the side of the second slide rail that is far away from each other, and the upper surface of the retainer is connected to the bottom surface of the corresponding first slide rail, so that the retainer can connect the corresponding first slide rail and second slide rail, ensuring the relative position and stability between the first slide rail and the second slide rail. Two positioning holes are opened on the side of the retainer to realize the positioning of the positioning holes.

[0011] Preferably, the left and right sides of the enclosure are provided with equally spaced heat dissipation holes, the front of the enclosure is provided with an enclosure door, and the enclosure door is fixedly installed with equally spaced fixing bolts.

[0012] By adopting the above technical solution, heat dissipation holes are installed on the left and right sides of the enclosure. The heat dissipation holes facilitate heat dissipation for the electricity meter and various components inside the enclosure, preventing the internal temperature of the enclosure from becoming too high. The enclosure door is set in front of the heat dissipation holes, and the enclosure and the enclosure door are connected by fixing bolts, so that the enclosure door can be fixed in front of the enclosure, realizing the opening and closing of the enclosure opening.

[0013] Preferably, each of the first clamping arms has a fixing block fixedly connected to the side of each arm that is far apart from each other, and each fixing block has a sliding groove inside.

[0014] By adopting the above technical solution, a fixing block is set on the side of the first clamping arm that is far away from each other. When the first clamping arm moves with the electricity meter, it can drive the corresponding fixing block to slide. A sliding groove is opened inside the fixing block to achieve positioning of the sliding groove.

[0015] Preferably, each of the grooves has a slider slidably connected to its inner wall, and each slider has a pusher fixedly connected to its outer surface. The outer surface of each pusher is slidably connected to the inner wall of the corresponding fixed block.

[0016] By adopting the above technical solution, the slider is installed on the inner wall of the slide groove. The slider is limited by the sliding connection between the slide groove and the slider. A push block is set on the outer surface of the slider and connected to the fixed block. When the operator needs to move the slider, he can simply move the push block along the fixed block.

[0017] Preferably, each of the sliders is fixedly connected to a positioning pin at one of its opposite ends, and the outer surface of each positioning pin is slidably connected to the corresponding positioning hole and the inner wall of the fixing block.

[0018] By adopting the above technical solution, the positioning pin is installed on the side of the slider that is far apart from each other, and set as a fixed connection. When the operator moves the push block and the slider, the corresponding positioning pin can move. Through the connection between the positioning pin and the positioning hole and the fixed block, the positioning pin can slide along the fixed block and can be inserted into the corresponding positioning hole. Through the connection between the positioning pin and the positioning hole, the first clamping arm and the energy meter can be locked, preventing the energy meter from moving without external force.

[0019] Preferably, each slider has a spring fixedly connected to one end of each slider that is close to each other, and the other end of each spring is fixedly connected to the inner wall of the corresponding groove.

[0020] By adopting the above technical solution, the spring is installed at one end of the slider that is close to each other, and the other end of the spring is fixed to the corresponding slide groove. When the operator moves the corresponding push block to move the slider, the slider moves the positioning pin along the slide groove and compresses the corresponding spring. When the energy meter and the first clamping arm move to the corresponding position, the spring corresponds to the positioning hole on the outside. Then, under the action of the spring, the positioning pin can quickly reset and insert into the positioning hole on the outside, so that the energy meter can be locked after being pulled out, preventing the pull-out structure from detaching and ensuring that the energy meter will not fall.

[0021] Preferably, an installation housing is fixedly installed on the inner wall of the box, and a rotating roller and a limiting wheel are rotatably connected to the inner wall of the installation housing. A rope winding disc is fixedly connected to the outer surface of the rotating roller.

[0022] By adopting the above technical solution, the mounting housing is installed on the inner wall of the box and set as a fixed connection to realize the limitation of the mounting housing. The rotating roller and the limiting wheel are set to rotate on the inner wall of the mounting housing to realize the limitation of the rotating roller and the limiting wheel. The rope winding disc is installed on the outer surface of the rotating roller. Through the connection between the rotating roller and the rope winding disc, the rotating roller can drive the rope winding disc to rotate when it rotates on the inner wall of the mounting housing.

[0023] Preferably, a pull rope is wound around the outer surface of the rope reel, and a hanging ring is fixedly connected to the other end of the pull rope. The end of the hanging ring is fixedly connected to the back of the second U-shaped frame.

[0024] By adopting the above technical solution, the pull rope is wound around the outer surface of the rope winding disc, and one end of the pull rope is fixed to the rope winding disc, so that the rope winding disc can store the pull rope. A hanging ring is set on the other end of the pull rope and connected to the back of the second U-shaped frame. When the operator pulls the energy meter outward, the first clamping arm and the second U-shaped frame move accordingly, which can drive the hanging ring to move. At this time, the pull rope is stretched, and the rope winding disc slowly rotates and releases the pull rope.

[0025] Preferably, a fixing frame is fixedly installed on the inner wall of the box, a guide wheel is rotatably connected to the inner wall of the fixing frame, a coil spring is fixedly installed on the inner wall of the mounting housing, and the other end of the coil spring is fixedly installed to the outer surface of the rotating roller.

[0026] By adopting the above technical solution, the fixing frame is installed on the inner wall of the housing, and the guide wheel is installed on the inner wall of the fixing frame. This installation of the guide wheel limits the outer side of the pull rope, allowing it to connect to the hanging ring after passing over the guide wheel, preventing wear caused by the surface of the pull rope contacting the edge of the mounting housing. Simultaneously, the limiting wheel is also designed to prevent severe wear on the pull rope. A coil spring is installed on the inner wall of the mounting housing, and its other end is connected to the rotating roller. When the hanging ring moves and pulls the rope, the winding reel and rotating roller rotate. Since the rotating roller is fixed to one end of the coil spring, the coil spring is compressed, generating a winding force. After the operator finishes inspecting the electricity meter, the spring's rebound action allows the rotating roller and winding reel to rotate and reset. At this point, the pull rope is automatically wound onto the surface of the winding reel, achieving the automatic reset effect of the pull-out structure and the electricity meter. This makes the operation after maintenance simpler and faster, further improving maintenance efficiency.

[0027] Beneficial effects

[0028] In summary, this application includes at least one of the following beneficial technical effects:

[0029] This invention provides a modular electricity metering box. By incorporating components such as rollers, gears, and racks, the electricity meter is clamped and fixed between a first clamping arm and a second clamping arm. When the electricity meter needs maintenance, pulling the meter moves the first and second clamping arms. At this time, the first and second U-shaped frames move along corresponding first and second slide rails. Through the meshing of the gears and racks and the rolling of the rollers and second slide rails, the electricity meter can be directly pulled to the outside of the box for maintenance, eliminating the need for operation within the confined space inside the box. This simple and quick operation reduces maintenance difficulty and improves maintenance efficiency. Furthermore, the entire stretching process does not consume electricity, which is beneficial for energy conservation and environmental protection.

[0030] This invention provides a modular electricity metering box. By incorporating components such as positioning holes, sliders, positioning pins, and springs, the positioning pin, under the action of the spring, connects to the positioning hole on the inner side of the retainer before the electricity meter is pulled out, thus locking the meter in place. When the electricity meter needs to be pulled out, the operator can move the corresponding push block, which in turn moves the corresponding slider. This slider causes the corresponding positioning pin to disengage from the inner positioning hole and compress the spring, allowing the electricity meter to be pulled out. The push block can be released during the pulling process. By spring-loaded slider and positioning pin, when the energy meter is moved to the designated maintenance position outside the box, the positioning pin aligns with the outer positioning hole. Then, under the action of the spring, the positioning pin quickly resets and inserts into the outer positioning hole, thereby locking the pulled-out energy meter. Conversely, after maintenance is completed, the above operation is repeated to push the energy meter back into the box. The quick-locking mechanism can quickly position the energy meter both before and after it has been pulled out, while preventing the energy meter from detaching and falling off the pull-out mechanism.

[0031] This invention provides a modular electricity metering box. By incorporating components such as a rotating roller, pull rope, hanging ring, and coil spring, the hanging ring is fixed to the back of a second U-shaped frame. During the pulling out of the electricity meter, the second U-shaped frame moves along with the meter, driving the hanging ring to move as well. The connection between the hanging ring and the pull rope allows the rotating roller and the rope reel to rotate and slowly release the pull rope. Since the two ends of the coil spring are connected to the mounting housing and the rotating roller respectively, the coil spring can be wound and compressed when the rotating roller and the rope reel rotate, generating a winding force. After the operator has finished inspecting the pulled-out electricity meter, the spring's rebound action allows the rotating roller and the rope reel to rotate and reset. At this point, the pull rope is automatically wound back by the rope reel, achieving an automatic reset effect for the pulled-out structure and the electricity meter. This makes the operation after maintenance simpler and faster, further improving maintenance efficiency. Attached Figure Description

[0032] Figure 1 This is a three-dimensional schematic diagram of the entire invention;

[0033] Figure 2 This is a schematic diagram of the overall front view of the present invention;

[0034] Figure 3 This is a structural schematic diagram showing the connection relationship between the box door and the fixing bolts of the present invention;

[0035] Figure 4 This is a schematic diagram showing the connection relationship between the retainer and the first and second slide rails of the present invention.

[0036] Figure 5 This is a schematic diagram of the connection relationship between the adjusting screw and the second clamping arm of the present invention;

[0037] Figure 6 This is a schematic diagram of the connection relationship between the mounting rod and the roller of the present invention;

[0038] Figure 7 This is a schematic diagram of the internal structure of the fixing block of the present invention;

[0039] Figure 8 This is a schematic diagram of the connection relationship between the pull rope and the hanging ring of the present invention;

[0040] Figure 9 This is a schematic diagram of the connection between the rotating roller and the coil spring of the present invention.

[0041] The components are as follows: 1. Box body; 2. Electricity meter; 3. First slide rail; 4. Second slide rail; 5. First U-shaped frame; 6. Second U-shaped frame; 7. First clamping arm; 8. Mounting rod; 9. Roller; 10. Adjusting screw; 11. Second clamping arm; 12. Gear; 13. Rack; 14. Cage; 15. Positioning hole; 16. Heat dissipation hole; 17. Box door; 18. Fixing bolt; 19. Fixing block; 20. Slide groove; 21. Slider; 22. Push block; 23. Positioning pin; 24. Spring; 25. Mounting housing; 26. Rotating roller; 27. Rope winding disc; 28. Pull rope; 29. ​​Hanging ring; 30. Fixing frame; 31. Guide wheel; 32. Coil spring; 33. Limit wheel. Detailed Implementation

[0042] The following is in conjunction with the appendix Figure 1 - Appendix Figure 9 This application will be described in further detail below.

[0043] Example 1: A modular electricity metering box includes a box body 1. An electricity meter 2 is installed inside the box body 1. Two first slide rails 3 and two second slide rails 4 are fixedly connected to the inner wall of the box body 1. A first U-shaped frame 5 is provided above the electricity meter 2, and the first U-shaped frame 5 is slidably disposed within the grooves of the two first slide rails 3. A second U-shaped frame 6 is provided below the electricity meter 2, and the second U-shaped frame 6 is slidably disposed within the grooves of the two second slide rails 4. Two first clamping arms 7 are fixedly connected to the inner wall of the second U-shaped frame 6, and the upper surface of each first clamping arm 7 abuts against the bottom surface of the electricity meter 2. The first slide rails 3 and second slide rails 4 are installed on the inner wall of the box body 1 to fix the first slide rails 3 and second slide rails 4. The first U-shaped frame 5 is positioned above the electricity meter 2 and slidably disposed within the inner wall of the first slide rails 3 to limit the movement of the first U-shaped frame 5. The second U-shaped frame 6 is positioned below the energy meter 2 and slidably mounted on the inner wall of the second slide rail 4 to limit its movement. The first clamping arm 7 is fixed to the second U-shaped frame 6 and abuts against the bottom surface of the energy meter 2, allowing it to support the meter. Equally spaced mounting rods 8 are fixedly connected to the left and right sides of the second U-shaped frame 6. Each mounting rod 8 has a rotatably connected roller 9 on its outer surface. The mounting rods 8 are installed on the left and right sides of the second U-shaped frame 6, and the rotating rollers 9 are mounted on their outer surfaces. The rollers 9 contact the inner wall of the corresponding second slide rail 4, allowing them to roll along the second slide rail 4, thus supporting the second U-shaped frame 6, improving its smoothness during sliding, and preventing jamming.

[0044] The inner wall of the first U-shaped frame 5 is threaded with two adjusting screws 10. Each adjusting screw 10 has a second clamping arm 11 rotatably connected to its bottom end. The bottom surface of each second clamping arm 11 abuts against the upper surface of the energy meter 2. The adjusting screws 10 are located on the inner wall of the first U-shaped frame 5. When the operator rotates the adjusting screws 10, the adjusting screws 10 can move up and down along the first U-shaped frame 5. The second clamping arms 11 are located at the bottom ends of the adjusting screws 10. The adjusting screws 10 and the second clamping arms 11... The rotating connection of the clamping arm 11 allows the adjusting screw 10 to move up and down, thereby driving the corresponding second clamping arm 11 to move up and down. When the operator rotates the adjusting screw 10 to lower the second clamping arm 11, the second clamping arm 11 can abut against the upper surface of the energy meter 2. Thus, through the cooperation of the first clamping arm 7 and the second clamping arm 11, the energy meter 2 is clamped and fixed. The inner wall of the first U-shaped frame 5 is rotatably connected to two gears 12, and the inner side wall of each first slide rail 3 is fixedly connected to... There is a rack 13, and each gear 12 meshes with the corresponding rack 13. The gear 12 is set on the inner wall of the first U-shaped frame 5. The first U-shaped frame 5 is connected to the gear 12 by rotation, so as to limit the position of the gear 12. The rack 13 is installed on the inner side wall of the groove of the corresponding first slide rail 3 to achieve the positioning of the rack 13. The gear 12 meshes with the corresponding rack 13, so that the gear 12 can move along the rack 13. When the operator needs to repair the energy meter 2, he directly pulls the energy meter 2 to drive the first clamping arm 7 and the second clamping arm 11 to move. At this time, the first U-shaped frame 5 and the second U-shaped frame 6 move accordingly. Through the meshing of the gear 12 and the rack 13, the roller 9 and the second slide rail 4 roll, so that the energy meter 2 can be directly pulled to the outside of the box 1. There is no need to operate in the narrow space inside the box 1. The operation is simple and quick, reducing the difficulty of repair and improving the maintenance efficiency. Moreover, the entire stretching process does not consume electricity, which is conducive to energy conservation and environmental protection.

[0045] Each of the two secondary slide rails 4 has a retainer 14 fixedly connected to its opposite side. The upper surface of each retainer 14 is fixedly connected to the bottom surface of the corresponding primary slide rail 3. Each retainer 14 has two positioning holes 15 on its opposite side. The retainer 14 is installed on the opposite side of the secondary slide rails 4, and the upper surface of the retainer 14 is connected to the bottom surface of the corresponding primary slide rail 3, so that the retainer 14 can connect the corresponding primary slide rail 3 and secondary slide rail 4, ensuring the relative position and stability between the primary slide rail 3 and the secondary slide rail 4. Two positioning holes 15 are opened on the side of the retainer 14 to achieve positioning of the positioning holes 15.

[0046] Example 2: A modular electricity metering box, wherein the left and right sides of the box body 1 are provided with heat dissipation holes 16 arranged at equal intervals, and the front of the box body 1 is provided with a box door 17. The box door 17 is fixedly installed with the box body 1 by fixing bolts 18 arranged at equal intervals. The heat dissipation holes 16 are installed on the left and right sides of the box body 1. The setting of the heat dissipation holes 16 facilitates heat dissipation of the electricity meter 2 and various components inside the box body 1, preventing the internal temperature of the box body 1 from being too high. The box door 17 is set on the front of the heat dissipation holes 16, and the box body 1 and the box door 17 are connected by fixing bolts 18, so that the box door 17 can be fixed on the front of the box body 1, realizing the opening and closing of the opening position of the box body 1.

[0047] Each of the first clamping arms 7 has a fixed block 19 fixedly connected to its opposite side. Each fixed block 19 has a groove 20 inside. The fixed blocks 19 are located on the opposite side of the first clamping arms 7. When the first clamping arms 7 move with the energy meter 2, they can drive the corresponding fixed blocks 19 to slide. The groove 20 inside the fixed block 19 is used to position the groove 20. A slider 21 is slidably connected to the inner wall of each groove 20. A push block 22 is fixedly connected to the outer surface of each slider 21. The outer surface of each push block 22 is slidably connected to the inner wall of the corresponding fixed block 19. The slider 21 is installed on the inner wall of the groove 20. The slider 21 is limited by the sliding connection between the groove 20 and the slider 21. The push block 22 is set on the outer surface of the slider 21 and connected to the fixed block 19. When the operator needs to move the slider 21, he can simply move the push block 22 along the fixed block 19.

[0048] Each slider 21 has a fixed locating pin 23 at its far side. The outer surface of each locating pin 23 is slidably connected to the corresponding locating hole 15 and the inner wall of the fixing block 19. The locating pins 23 are installed on the far sides of the sliders 21, forming a fixed connection. This allows the corresponding locating pin 23 to move when the operator moves the push block 22 and the slider 21. Through the connection between the locating pin 23 and the locating hole 15 and the fixing block 19, the locating pin 23 can slide along the fixing block 19 and insert into the corresponding locating hole 15. The connection between the locating pin 23 and the locating hole 15 locks the first clamping arm 7 and the energy meter 2, preventing the energy meter 2 from moving without external force. The ends of each slider 21 that are close to each other... Each component is fixedly connected with a spring 24. The other end of each spring 24 is fixedly connected to the inner wall of the corresponding slide groove 20. The spring 24 is installed on one end of the slider 21 that is close to each other, and the other end of the spring 24 is fixed to the corresponding slide groove 20. When the operator moves the corresponding push block 22 to move the slider 21, the slider 21 moves the positioning pin 23 along the slide groove 20 and compresses the corresponding spring 24. When the energy meter 2 and the first clamping arm 7 move to the corresponding position, the spring 24 corresponds to the outer positioning hole 15. Then, under the action of the spring 24, the positioning pin 23 can quickly reset and insert into the outer positioning hole 15, so that the energy meter 2 can be locked after being pulled out, preventing the pull-out structure from detaching and ensuring that the energy meter 2 will not fall.

[0049] A mounting housing 25 is fixedly installed on the inner wall of the housing 1. A rotating roller 26 and a limiting wheel 33 are rotatably connected to the inner wall of the mounting housing 25. A rope winding disc 27 is fixedly connected to the outer surface of the rotating roller 26. The mounting housing 25 is installed on the inner wall of the housing 1, which is a fixed connection to limit the movement of the mounting housing 25. The rotating roller 26 and the limiting wheel 33 are set to rotate on the inner wall of the mounting housing 25 to limit their movement. The rope winding disc 27 is installed on the outer surface of the rotating roller 26. Through the connection between the rotating roller 26 and the rope winding disc 27, the rotating roller 26 can drive the rope winding disc 27 to rotate when it rotates on the inner wall of the mounting housing 25. A pull rope 28 is wound around the outer surface of the device, and a hanging ring 29 is fixedly connected to the other end of the pull rope 28. The end of the hanging ring 29 is fixedly connected to the back of the second U-shaped frame 6. The pull rope 28 is wound around the outer surface of the winding reel 27, and one end of the pull rope 28 is fixed to the winding reel 27 so that the winding reel 27 can store the pull rope 28. The hanging ring 29 is set at the other end of the pull rope 28 and is connected to the back of the second U-shaped frame 6. When the operator pulls the energy meter 2 outward, the first clamping arm 7 and the second U-shaped frame 6 move accordingly, which can drive the hanging ring 29 to move. At this time, the pull rope 28 is stretched, and the winding reel 27 slowly rotates and releases the pull rope 28.

[0050] A fixing bracket 30 is fixedly installed on the inner wall of the housing 1. A guide wheel 31 is rotatably connected to the inner wall of the fixing bracket 30. A coil spring 32 is fixedly installed on the inner wall of the mounting housing 25. The other end of the coil spring 32 is fixedly installed on the outer surface of the rotating roller 26. The fixing bracket 30 is installed on the inner wall of the housing 1, and the guide wheel 31 is installed on the inner wall of the fixing bracket 30. The guide wheel 31 limits the outer side of the pull rope 28, so that the pull rope 28 connects to the hanging ring 29 after passing around the guide wheel 31, avoiding wear caused by the surface of the pull rope 28 abutting against the edge of the mounting housing 25. At the same time, the limiting wheel 33 is also set to prevent the pull rope 28 from violently moving. Wear and tear are addressed by installing the coil spring 32 on the inner wall of the mounting housing 25 and connecting the other end of the coil spring 32 to the rotating roller 26. When the hanging ring 29 moves and stretches the pull rope 28, the winding reel 27 and the rotating roller 26 rotate. Since the rotating roller 26 is fixed to one end of the coil spring 32, the coil spring 32 is wound and compressed, generating a winding force. After the operator finishes inspecting the energy meter 2, the rebound action of the coil spring 32 allows the rotating roller 26 and the winding reel 27 to rotate and reset. At this time, the pull rope 28 is automatically wound onto the surface of the winding reel 27, achieving the automatic reset effect of the pull-out structure and the energy meter 2. This makes the operation after the inspection and maintenance is completed simpler and faster, further improving maintenance efficiency.

[0051] The implementation principle of this application embodiment is as follows: When installing the electricity meter 2, the electricity meter 2 is placed on the first clamping arm 7, and then the corresponding adjusting screw 10 is rotated to drive the second clamping arm 11 to descend until the second clamping arm 11 is in contact with the electricity meter 2. The installation of the electricity meter 2 is completed through the first clamping arm 7 and the second clamping arm 11. When the electricity meter 2 needs to be inspected, the operator opens the box door 17 through the fixing bolt 18, and then moves the corresponding push block 22. The push block 22 drives the corresponding slider 21 to move along the slide groove 20. At this time, the slider 21 drives the corresponding positioning pin 23 to disengage from the inner positioning hole 15 and compress the spring. Spring 24 is used to pull the energy meter 2 outward. At this time, the first U-shaped frame 5 and the second U-shaped frame 6 move along the corresponding first slide rail 3 and second slide rail 4. Through the meshing of gear 12 and rack 13, the roller 9 and the second slide rail 4 roll, allowing the energy meter 2 to be directly pulled to the outside of the box 1 for maintenance. This eliminates the need for operation in the confined space inside the box 1, making the operation simple and quick, reducing maintenance difficulty, and improving maintenance efficiency. Moreover, the entire pulling process does not consume electricity, which is beneficial for energy conservation and environmental protection. During the pulling process, the second U-shaped frame 6 drives the hanging ring 29 to move. Through the connection between the hanging ring 29 and the pull rope 28, the rotating roller 26 is moved. The winding reel 27 can rotate and slowly release the pull rope 28. Since the two ends of the coil spring 32 are connected to the mounting housing 25 and the rotating roller 26 respectively, the coil spring 32 can be wound and compressed when the rotating roller 26 and the winding reel 27 rotate, generating a winding force. When the energy meter 2 is pulled to the designated position, the positioning pin 23 corresponds to the outer positioning hole 15. Under the action of the spring 24, the positioning pin 23 quickly resets and inserts into the outer positioning hole 15, thereby locking the energy meter 2 after it is pulled out. Through the quick locking mechanism, the quick positioning of the energy meter 2 before and after it is pulled out can be completed, while preventing the energy meter 2 from being pulled out. When the structure detaches and falls off, after the operator finishes inspecting the energy meter 2, they can move the corresponding push block 22 again to disengage the positioning pin 23 from the outer positioning hole 15. Then, under the rebound action of the coil spring 32, the rotating roller 26 and the rope winding disc 27 can rotate and reset. At this time, the pull rope 28 is automatically wound up through the rope winding disc 27, thereby pulling the energy meter 2 to reset until the positioning pin 23 is connected to the inner positioning hole 15 under the action of the spring 24, completing the reset operation. This achieves the automatic reset effect of the pulled-out structure and the energy meter 2, making the operation after the inspection and maintenance more simple and quick, and further improving maintenance efficiency.

[0052] The embodiments described in this specific implementation are preferred embodiments of this application and are not intended to limit the scope of protection of this application. Identical components are represented by the same reference numerals. Therefore, all equivalent changes made to the structure, shape, and principle of this application should be covered within the scope of protection of this application.

Claims

1. A modular electricity metering cabinet comprising a cabinet (1), characterized in that: The box (1) is equipped with an electricity meter (2). The inner wall of the box (1) is fixedly connected with two first slide rails (3) and two second slide rails (4). A first U-shaped frame (5) is provided above the electricity meter (2). The first U-shaped frame (5) is slidably disposed in the groove of the two first slide rails (3). A second U-shaped frame (6) is provided below the electricity meter (2). The second U-shaped frame (6) is slidably disposed in the groove of the two second slide rails (4). Two first clamping arms (7) are fixedly connected to the inner wall of the second U-shaped frame (6). The upper surface of each first clamping arm (7) abuts against the bottom surface of the electricity meter (2). The left and right sides of the first U-shaped frame (5) are fixedly connected with mounting rods (8) arranged at equal intervals. Rollers (9) are rotatably connected to the outer surface of each mounting rod (8). Two adjusting screws (10) are threadedly connected to the inner wall of the first U-shaped frame (5). A second clamping arm (11) is rotatably connected to the bottom end of each adjusting screw (10). The bottom surface of each second clamping arm (11) abuts against the upper surface of the energy meter (2). Two gears (12) are rotatably connected to the inner wall of the first U-shaped frame (5). A rack (13) is fixedly connected to the inner side wall of each first slide rail (3). Each gear (12) meshes with the corresponding rack (13).

2. The modular electric energy metering box according to claim 1, characterized in that: Each of the second slide rails (4) has a retainer (14) fixedly connected to the side away from each other. The upper surface of each retainer (14) is fixedly connected to the bottom surface of the corresponding first slide rail (3). Each retainer (14) has two positioning holes (15) on the side away from each other.

3. The modular electric energy metering box according to claim 1, characterized in that: The left and right sides of the box (1) are provided with heat dissipation holes (16) arranged at equal intervals. The front of the box (1) is provided with a box door (17). The box door (17) and the box (1) are fixedly installed with fixing bolts (18) arranged at equal intervals.

4. The modular electric metering box of claim 2, wherein: Each of the first clamping arms (7) has a fixed block (19) fixedly connected to the side of each arm that is far apart from each other, and each fixed block (19) has a groove (20) inside.

5. A modular electricity metering box according to claim 4, characterised in that: Each of the grooves (20) has a slider (21) slidably connected to its inner wall, and a push block (22) is fixedly connected to the outer surface of each slider (21). The outer surface of each push block (22) is slidably connected to the inner wall of the corresponding fixed block (19).

6. A modular electricity metering box according to claim 5, characterised in that: Each of the sliders (21) is fixedly connected to a positioning pin (23) at one end away from each other, and the outer surface of each positioning pin (23) is slidably connected to the inner wall of the corresponding positioning hole (15) and fixing block (19).

7. The modular electric metering box according to claim 5, characterized in that: Each of the sliders (21) has a spring (24) fixedly connected to one end of each slider (21) that is close to each other, and the other end of each spring (24) is fixedly connected to the inner wall of the corresponding groove (20).

8. The modular electric metering box of claim 1, wherein: The inner wall of the box (1) is fixedly installed with a mounting shell (25), and the inner wall of the mounting shell (25) is rotatably connected with a rotating roller (26) and a limiting wheel (33). The outer surface of the rotating roller (26) is fixedly connected with a rope winding disc (27).

9. A modular electricity metering box according to claim 8, characterised in that: The outer surface of the rope reel (27) is wound with a pull rope (28), and the other end of the pull rope (28) is fixedly connected to a hanging ring (29). The end of the hanging ring (29) is fixedly connected to the back of the second U-shaped frame (6).

10. The modular electric metering box of claim 8, wherein: A fixing frame (30) is fixedly installed on the inner wall of the box (1), and a guide wheel (31) is rotatably connected to the inner wall of the fixing frame (30). A coil spring (32) is fixedly installed on the inner wall of the mounting housing (25), and the other end of the coil spring (32) is fixedly installed on the outer surface of the rotating roller (26).

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