Modularized electric energy metering box

Abstract

The invention relates to a modularized electric energy metering box, and relates to the technical field of electric energy metering, and the modularized electric energy metering box comprises a support, the top of the support is fixedly connected with a box body, the left side of the exterior of the box body is provided with a heat dissipation mechanism, the top of the box body is provided with an adjusting mechanism, and the interior of the box body is provided with a moving plate. Mounting blocks are fixedly connected to the two sides of the exterior of the movable plate, dismounting and mounting mechanisms are arranged in the multiple mounting blocks, electrical components are arranged on the front sides of the exteriors of the multiple mounting blocks, a threading hole is formed in the left side of the lower portion of the box body, a sealing mechanism is arranged in the threading hole, and a box door is installed on the front side of the exterior of the box body. The element is held firstly, then the clamping plate is pushed to move outwards to drive the related structure to move, the clamping plate is separated after the first spring is extruded, and the element can be taken out; during installation, the clamping plates are separated to place elements, the first spring resets to complete fixation after loosening, and the structure achieves the effects of quickly disassembling and assembling the elements of the electric energy metering box, saving labor and improving maintenance efficiency.

Description

TECHNICAL FIELD

[0001] The application relates to the technical field of electric energy metering boxes, in particular to a modular electric energy metering box. BACKGROUND

[0002] The electric energy metering box is an important equipment for installing, protecting and managing electric energy metering devices in the power system, and is widely used in residential areas, industrial parks, commercial buildings and public facilities. With the promotion of power grid construction and intelligent management, the electric energy metering box not only needs to have safety, protection and metering functions, but also needs to have high convenience and efficiency when installing, maintaining and replacing internal electrical components.

[0003] The existing electric energy metering box usually adopts a fixed structure, that is, various electrical components (such as circuit breakers, wiring terminals and electric meters) are fixed on the mounting plate by screws or buckles. Although this kind of structure can meet the basic use requirements, there are still the following disadvantages in the actual maintenance process. When the internal electrical components are damaged or need to be replaced, professional personnel usually need to use tools to disassemble the fixing parts one by one, which is tedious and time-consuming.

[0004] In addition, the internal space of the metering box is limited, and part of the components are installed in the deep part of the box. The maintenance personnel need to reach into the narrow space to operate, which not only increases the labor intensity, but also has certain safety risks, thereby reducing the maintenance efficiency of the electric energy metering box. SUMMARY

[0005] The application aims to provide a modular electric energy metering box, which solves the problem that when the internal electrical components are damaged or need to be replaced, professional personnel usually need to use tools to disassemble the fixing parts one by one, which is tedious and time-consuming.

[0006] The modular electric energy metering box provided by the application comprises a support, the top of the support is fixedly connected with a box body, the left side of the outer part of the box body is provided with a heat dissipation mechanism, the top of the box body is provided with an adjusting mechanism, the inside of the box body is provided with a moving plate, the outer part of the moving plate is fixedly connected with mounting blocks on both sides, the inside of each mounting block is provided with a dismounting mechanism, the outer part of each mounting block is provided with electrical components in front, the lower left side of the box body is provided with a wire hole, the inside of the wire hole is provided with a sealing mechanism, the front side of the outer part of the box body is provided with a box door, the outer part of the box door is provided with transparent windows on both sides, and the outer part of each transparent window is provided with a digital magnification mechanism. The dismounting mechanism comprises a connecting ring arranged inside the plurality of mounting blocks, rotating plates rotatably connected to the two sides of the outer part of the connecting ring, connecting rods rotatably connected to the two sides of the outer part of the two rotating plates, sliding blocks arranged on the outer part of the plurality of connecting rods, limiting blocks fixedly connected to the top of the two sliding blocks, first springs fixedly connected to the two sides of the outer part of the two sliding blocks, the bottom of the plurality of first springs fixedly connected to the two sides of the inner part of the mounting blocks, connecting plates fixedly connected to the front sides of the outer part of the two sliding blocks, clamping plates fixedly connected to the top of the two connecting plates, anti-skid grooves arranged on the outer part of the two clamping plates, guide grooves arranged on the two sides of the inner part of the two sliding blocks, and the plurality of connecting rods slidingly connected to the inner part of the plurality of guide grooves.

[0007] Through the above technical scheme, the two clamping plates are moved outward, the connecting plates and the sliding blocks are synchronously moved outward, the connecting rods push the rotating plates to rotate around the connecting ring, and the plurality of first springs are simultaneously pressed. After the clamping plates are separated, the element can be taken out. When installing, the clamping plates are separated and the element is placed. After being loosened, the first springs make the clamping plates reset and fix. The structure is convenient for quickly dismounting and mounting the electrical elements in the electric energy metering box. The guide grooves are arranged to facilitate the movement of the connecting rods.

[0008] Preferably, the adjusting mechanism comprises a motor arranged at the top left side of the box body, a first bevel gear fixedly connected to the output end of the motor, a second bevel gear meshingly connected to the lower part of the first bevel gear, a transmission rod fixedly connected to the inner part of the second bevel gear, a spur gear fixedly connected to the lower part of the transmission rod, a rack plate meshingly connected to the outer part of the spur gear, a connecting block fixedly connected to the lower part of the rack plate, and the connecting block fixedly connected to the top of the moving plate.

[0009] Through the above technical scheme, the motor is started, the motor drives the first bevel gear to rotate, and then drives the second bevel gear and the transmission rod to rotate. The spur gear on the transmission rod drives the rack plate to move forward. The rack plate pushes the moving plate and the mounting block to move forward to the front side of the box body through the connecting block. After the motor is stopped, the element is installed on the mounting block. After the installation is completed, the motor is started again to reset the moving plate.

[0010] Preferably, the sealing mechanism comprises a telescopic rod fixedly connected to the bottom left side of the box body, a second spring sleeved on the outer part of the telescopic rod, a moving block fixedly connected to the top of the telescopic rod, a protruding block fixedly connected to the top of the moving block, a sealing plate fixedly connected to the right side of the outer part of the moving block, the sealing plate being made of rubber material, the sealing plate slidingly connected to the inner part of the threading hole, a push block slidingly connected to the lower left side of the box body, and a plug rod fixedly connected to the inner part of the push block.

[0011] By adopting the technical scheme, the mobile block and the sealing plate are moved left by the mobile block, the threading hole is exposed, the telescopic rod is squeezed and the second spring is compressed, the insertion hole is aligned with the insertion rod when the block moves to the insertion rod position, the insertion rod is inserted into the insertion hole by pushing the block, the limiting of the sealing plate is completed, threading can be performed, the cable is taken out when not in use, the insertion rod is moved out, the second spring pushes the sealing plate to reset and seal the threading hole.

[0012] Preferably, the heat dissipation mechanism comprises a ventilation duct fixedly connected to the left side of the box body, a ventilation plate installed on the right side of the ventilation duct, a dustproof plate installed on the left side of the ventilation duct, a motor arranged in the middle of the ventilation duct, a rotating disc fixedly connected to the output end of the motor, and a plurality of fan blades fixedly connected to the outer periphery of the rotating disc.

[0013] By adopting the technical scheme, the motor is started, the rotating disc and the fan blades are driven to rotate, the external air is filtered by the dustproof plate and then sent into the box body through the ventilation plate to dissipate heat for the electrical components, meanwhile, the protective cover is installed by aligning the insertion block with the insertion slot to prevent rainwater from entering and ensure safe heat dissipation in rainy days.

[0014] Preferably, the digital magnification mechanism comprises an adapter block fixedly connected to the middle of the two transparent windows, an adjusting block slidingly connected to the inside of the adapter block, a sliding rod fixedly connected to the middle of the adjusting block, a guide block slidingly connected to the outer sides of the sliding rod, a third spring fixedly connected to the middle of the two guide blocks and sleeved on the middle of the sliding rod, a positioning plate fixedly connected to the front outer side of each guide block, a guide plate fixedly connected to the front outer side of the adjusting block, a frame fixedly connected to the bottom of each guide plate, a magnifying glass installed in the middle of each frame, a baffle provided on the front outer side of each frame, and a positioning block fixedly connected to the outer sides of each baffle.

[0015] By adopting the technical scheme, when the external value of the electrical component is viewed, the insertion block is inserted into the second positioning hole from the first positioning hole by moving the baffle, the other baffle is operated synchronously, the positioning plate is relatively moved, the third spring is compressed to move upward after being separated from the mounting hole, the magnifying glass is driven to rise to the outside of the transparent window, the positioning plate is loosened after being aligned with the mounting hole, the third spring is reset to the fixed position, the reading can be clearly read through the magnifying glass, the door of the box is not needed to be opened, the safety hazard and the environmental influence are avoided, and the accuracy of reading is improved.

[0016] Preferably, the first sliding hole is arranged on the both sides of the mounting block, the two connecting plates are slidably connected in the first sliding hole, the material of the two clamping plates is rubber material, the limiting groove is arranged on the both sides of the mounting block, the two limiting blocks are slidably connected in the limiting groove, the protective shell is arranged on the top of the box, the clamping groove is arranged on the left side of the top of the box, the protective shell is inserted with the clamping groove, the spot welding wire mesh is arranged on the right side of the box, the knocking hole is arranged on the upper part of the spot welding wire mesh, and the knocking hole is arranged on the right side of the box.

[0017] By adopting the above technical scheme, the first sliding hole is arranged to facilitate the movement of the connecting plate, the limiting groove is arranged to facilitate the movement of the limiting block, the clamping groove is arranged to facilitate the installation of the protective shell, the spot welding wire mesh is arranged to facilitate ventilation and heat dissipation, and the knocking hole is arranged to reduce the material consumption of the box.

[0018] Preferably, the insertion hole is arranged in the protruding block, the insertion rod is inserted with the insertion hole, the third sliding hole is arranged on the left side of the bottom of the box, and the protruding block is slidably connected in the third sliding hole.

[0019] By adopting the above technical scheme, the insertion hole is arranged to facilitate the installation of the insertion rod, and the third sliding hole is arranged to facilitate the movement of the protruding block.

[0020] Preferably, the insertion block is fixedly connected on the both sides of the ventilation pipeline, the insertion slot is arranged on the both sides of the protective cover, the insertion block is inserted with the insertion slot, the mounting ring is fixedly connected in the ventilation pipeline, and the motor is fixedly connected in the mounting ring.

[0021] By adopting the above technical scheme, the insertion slot is arranged to facilitate the installation of the insertion block, and the mounting ring is arranged to facilitate the installation of the motor.

[0022] Preferably, the through hole is arranged on the front side of the upper part of the box, the rack plate is slidably connected in the through hole, the second sliding hole is arranged on the inner top of the box, and the connecting block is slidably connected in the second sliding hole.

[0023] By adopting the above technical scheme, the through hole is arranged to facilitate the movement of the rack plate, and the second sliding hole is arranged to facilitate the movement of the connecting block.

[0024] Preferably, both sides of the connecting block are fixedly connected with extension blocks, both sides of the extension blocks are provided with mounting holes, the two positioning plates are inserted with any two mounting holes, the connecting block is provided with an adjusting hole, the two positioning plates and the guide plate are slidingly connected in the adjusting hole, the first positioning holes are formed in the front sides of the two frames, the positioning blocks are inserted with the first positioning holes, and the second positioning holes are formed in the lower sides of the two frames.

[0025] By adopting the above technical scheme, the positioning hole is arranged to facilitate the installation of the positioning plate, and the first positioning hole and the second positioning hole are arranged to facilitate the installation of the positioning plate.

[0026] To sum up, the present application has at least one of the following beneficial technical effects: 1. When the damaged electrical element is disassembled, the element is first held, and then the two clamping plates are moved outward to drive the connecting plate and the sliding block to move outward synchronously, so that the connecting rod pushes the rotating plate to rotate around the connecting ring, and at the same time, the plurality of first springs are compressed, the element can be taken out after the clamping plates are separated, when installing, the clamping plates are separated and the element is placed, and after being loosened, the first spring makes the clamping plate reset and fix, the structure facilitates quick disassembly and assembly of the electrical element in the electric energy metering box, reduces the dependence on professionals, saves labor cost, and improves maintenance efficiency; 2. When the electrical element is installed, the box door is first opened and the motor is started, the motor drives the first bevel gear to rotate, and then drives the second bevel gear and the transmission rod to rotate, the straight gear on the transmission rod drives the rack plate to move forward, the rack plate pushes the moving plate and the mounting block to move forward to the front side of the box body through the connecting block, after the motor is stopped, the element is installed on the mounting block, and after installation is completed, the motor is started again to reset the moving plate, the mechanism facilitates moving the element to the front part of the box body for operation, reduces the difficulty of reaching into the box, saves disassembly and assembly time, and improves work efficiency; 3. When the cable is connected, the moving block drives the moving block and the sealing plate to move left to expose the threading hole, and at the same time, the telescopic rod is compressed and the second spring is compressed, when the convex block moves to the plug rod position, the plug hole is aligned with the plug rod, the plug rod is inserted into the plug hole by pushing the plug, the limiting of the sealing plate is completed, and the threading can be performed, when not in use, the cable is taken out, the plug rod is moved out, the second spring pushes the sealing plate to reset and seal the threading hole, the structure facilitates repeated opening and closing of the threading hole, improves wiring flexibility, and avoids hidden dangers caused by long-term opening.

[0027] 4. When the electric machine is started, the right side drives the rotating disc and the fan blade to rotate, the external air is filtered through the dustproof plate and then sent into the box body through the ventilation plate to heat the electrical element, at the same time, the protective cover is installed in alignment with the insertion block and the insertion slot, which can prevent rainwater from entering, ensures safe heat dissipation in rainy days, the heat dissipation mode is better than the traditional heat dissipation hole, and ventilation and protection are combined, and the service life of the electric energy metering box is prolonged.

[0028] 5. The present application in view of the internal electrical components of the electric energy metering box, first move the baffle to make the plug block inserted into the second positioning hole from the first positioning hole, synchronize the operation of another baffle, relative to the positioning plate, compress the third spring, make it out of the mounting hole and then lift up, drive the magnifying glass to the outside of the transparent window, loosen the positioning plate after aligning the mounting hole, the third spring resets the fixed position, through the magnifying glass can clearly read the number, without opening the door, avoid the security risks and environmental impact, improve the accuracy and convenience of reading. BRIEF DESCRIPTION OF DRAWINGS

[0029] Figure 1 is a perspective view of the present application; Figure 2 is a schematic diagram of the threading hole structure of the present application; Figure 3 is a schematic diagram of the electrical component structure of the present application; Figure 4 is a schematic diagram of the ventilation plate structure of the present application; Figure 5 is a schematic diagram of the air inlet cover split structure of the present application; Figure 6 is a schematic diagram of the motor structure of the present application; Figure 7 is a schematic diagram of the baffle split structure of the present application; Figure 8 is a schematic diagram of the electrical component split structure of the present application; Figure 9 is a schematic diagram of the connecting ring structure of the present application; Figure 10 is a schematic diagram of the rotating plate structure of the present application; Figure 11 is a schematic diagram of the protective cover split structure of the present application; Figure 12 is a schematic diagram of the slot structure of the present application; Figure 13 is Figure 6 is an enlarged view of structure A in the middle; Figure 14 is Figure 6 is an enlarged view of structure B in the middle; Figure 15 is Figure 7 is an enlarged view of structure C in the middle; Figure 16 is Figure 7 is an enlarged view of structure D in the middle.

[0030] Explanation of reference signs: 1, support; 2, box body; 3, box door; 4, transparent window; 5, spot-welded screen; 6, knock-off hole; 7, protective shell; 8, mounting block; 9, electrical element; 10, connecting ring; 11, rotating plate; 12, connecting rod; 13, sliding block; 14, limiting block; 15, limiting groove; 16, first spring; 17, connecting plate; 18, clamping plate; 19, first sliding hole; 20, clamping groove; 21, motor; 22, first bevel gear; 23, second bevel gear; 24, transmission rod; 25, spur gear; 26, rack plate; 27, connecting block; 28, moving plate; 29, through hole; 30, second sliding hole; 31, threading hole; 32, telescopic rod; 33, second spring; 34, moving block; 35, protruding block; 36, sealing plate; 37, push block; 38, insertion rod; 39, insertion hole; 40, ventilation duct; 41, mounting ring; 42, motor; 43, rotating disc; 44, fan blade; 45, linking block; 46, adjusting hole; 47, dustproof plate; 48, ventilation plate; 49, insertion block; 50, protective cover; 51, insertion groove; 52, third sliding hole; 53, extension block; 54, mounting hole; 55, adjusting block; 56, sliding rod; 57, guide block; 58, third spring; 59, positioning plate; 60, guide plate; 61, frame; 62, magnifying glass; 63, first positioning hole; 64, baffle; 65, positioning block; 66, second positioning hole; 67, guide groove. DETAILED DESCRIPTION

[0031] The following description will be made in conjunction with the accompanying drawings. Figure 1 - The accompanying drawings Figure 16 The present application will be further described in detail. EMBODIMENT

[0032] Please refer to the accompanying drawings Figure 1 - The accompanying drawings Figure 8The utility model provides a modular electric energy metering box, including support 1, support 1 top fixedly connected with box 2, by setting up support 1, it is convenient to separate box 2 from ground, avoid rainwater to enter the inside of box 2, box 2 outside left side is installed heat dissipation mechanism, by setting up heat dissipation mechanism, it is convenient to carry out heat dissipation operation to the inside of box 2, box 2 top is provided with adjusting mechanism, by setting up adjusting mechanism, it is convenient to adjust the inside position of moving plate 28 in box 2, box 2 inside is provided with moving plate 28, moving plate 28 outside both sides are fixedly connected with mounting block 8, a plurality of mounting block 8 inside are provided with dismounting mechanism, by setting up dismounting mechanism, it is convenient to quickly dismount electric element 9, a plurality of mounting block 8 outside front side are provided with electric element 9, box 2 lower part left side is seted up with threading hole 31, by setting up threading hole 31, it is convenient for the in and out of cable, threading hole 31 inside is provided with sealing mechanism, by setting up sealing mechanism, it is convenient to carry out sealing operation to threading hole 31, box 2 outside front side is installed box door 3, right side box door 3 outside both sides are installed transparent window 4, by setting up transparent window 4, it is convenient to view the situation in the inside of box 2, and two transparent window 4 outside are provided with digital amplification mechanism, box 2 outside right side is installed spot welding wire net 5, by setting up spot welding wire net 5, it is convenient to carry out heat dissipation and ventilation operation to the inside of box 2, spot welding wire net 5 upper portion is provided with knock -off hole 6, knock -off hole 6 sets up in the outside right side of box 2, by setting up knock -off hole 6, the overall weight of box 2 can be reduced, especially in large -size or heavy -duty metering box, reasonable hole can effectively reduce material consumption, thereby reducing production and transportation cost.

[0033] The disassembling mechanism comprises a connecting ring 10 arranged inside the plurality of mounting blocks 8, two rotating plates 11 rotatably connected to the outer sides of the connecting ring 10, two connecting rods 12 rotatably connected to the outer sides of the two rotating plates 11, a plurality of sliding blocks 13 arranged outside the plurality of connecting rods 12, two limiting blocks 14 fixedly connected to the top of the two sliding blocks 13, two first springs 16 fixedly connected to the outer sides of the two sliding blocks 13, a plurality of first springs 16 fixedly connected to the inner sides of the mounting blocks 8, two connecting plates 17 fixedly connected to the outer front sides of the two sliding blocks 13, two clamping plates 18 fixedly connected to the top of the two connecting plates 17, anti-skid grooves formed in the outer sides of the two clamping plates 18, the fixed stability being improved through the clamping plates 18 and the anti-skid grooves, first sliding holes 19 formed in the outer sides of the mounting blocks 8, the two connecting plates 17 slidably connected to the inner sides of the two first sliding holes 19, the movement of the connecting plates 17 being facilitated through the first sliding holes 19, the material of the two clamping plates 18 being rubber material, the rubber material being soft and not damaging the appearance of the electrical components 9, limiting grooves 15 formed in the inner sides of the mounting blocks 8, the two limiting blocks 14 slidably connected to the inner sides of the two limiting grooves 15, the movement of the limiting blocks 14 being facilitated through the limiting grooves 15, guide grooves 67 formed in the inner sides of the two sliding blocks 13, and the plurality of connecting rods 12 slidably connected to the inner sides of the plurality of guide grooves 67, the movement of the connecting rods 12 being facilitated through the guide grooves 67.

[0034] Specifically, when the damaged electrical element 9 is disassembled, the maintenance personnel first holds the electrical element 9 to be disassembled by hand to avoid secondary damage caused by shaking during loosening, then the operator moves the clamping plates 18 on both sides to make the two clamping plates 18 move synchronously in opposite directions, in this process, the clamping plate 18 is fixedly connected with the two connecting plates 17 outside, so when the clamping plate 18 moves, the two connecting plates 17 also expand to both sides in parallel, further, when the two connecting plates 17 move, they will simultaneously drive the two sliding blocks 13 fixedly connected with the bottom to slide to both sides, in the process of the two sliding blocks 13 sliding outward, they will drive the four connecting rods 12 slidingly connected outside to move in the four guide grooves 67 opened on both sides inside the two sliding blocks 13, the movement of the four connecting rods 12 further drives the two rotating plates 11 fixedly connected outside to rotate around the connecting ring 10 as the axis, thereby providing more operating space for the separation of the clamping plate 18, at the same time, in the process of the sliding block 13 moving, it will also squeeze the multiple first springs 16 installed outside, so that the first spring 16 elastically deforms and accumulates elastic potential energy under the action of external force, as the two clamping plates 18 continuously expand to both sides, when they are completely separated from the outside of the electrical element 9, the electrical element 9 loses the clamping constraint, at this time, the damaged electrical element 9 can be easily taken out of the device and replaced, in the process of installing the electrical element 9, the operator needs to repeat the above steps in the opposite direction, first push the two clamping plates 18 apart, after forming a suitable clamping gap, place the new electrical element 9 accurately in the middle position of the two clamping plates 18, then slowly release the clamping plate 18, under the reaction force of the multiple first springs 16 outside, the two sliding blocks 13 automatically reset under the driving of the elastic force, thereby driving the four connecting rods 12, the two rotating plates 11 and the two connecting plates 17 to return to the initial position in turn, so that the two clamping plates 18 gradually close and finally clamp the electrical element 9, completing the fixed installation, through the above design, when the electrical element 9 in the electrical energy metering box is damaged, the maintenance personnel can quickly complete the disassembly and installation operation of the electrical element 9 without the need for complex tools, reducing the over-reliance on professional technicians, reducing the cost of manual maintenance, and improving the efficiency of the overall maintenance work.

[0035] Please refer to the attached Figure 2 -attached Figure 11The adjusting mechanism comprises a motor 21 arranged at the top left side of the box body 2, a first bevel gear 22 fixedly connected at the output end of the motor 21, a second bevel gear 23 meshingly connected at the lower portion of the first bevel gear 22, a transmission rod 24 fixedly connected at the inner portion of the second bevel gear 23, a straight gear 25 fixedly connected at the lower portion of the transmission rod 24, a rack plate 26 meshingly connected at the outer portion of the straight gear 25, a connecting block 27 fixedly connected at the lower portion of the rack plate 26, and the connecting block 27 is fixedly connected at the top of a moving plate 28. A protective shell 7 is arranged at the top of the box body 2, which plays a protective role for the motor 21. A clamping groove 20 is formed at the top left side of the box body 2, and the protective shell 7 is inserted into the clamping groove 20. The clamping groove 20 facilitates the installation of the protective shell 7. A through hole 29 is formed at the front side of the upper portion of the box body 2, and the rack plate 26 is slidingly connected at the inner portion of the through hole 29. The through hole 29 facilitates the movement of the rack plate 26. A second sliding hole 30 is formed at the inner top of the box body 2, and the connecting block 27 is slidingly connected at the inner portion of the second sliding hole 30. The second sliding hole 30 facilitates the movement of the connecting block 27.

[0036] Specifically, when installing the electrical component 9 inside the electric energy metering box, first, the operator needs to open the box door 3, then start the motor 21, the motor 21 drives the first bevel gear 22 fixedly connected to the output end to rotate, the first bevel gear 22 rotates with the second bevel gear 23 meshingly connected below to rotate, when the second bevel gear 23 rotates, the transmission rod 24 fixedly connected inside the second bevel gear 23 also rotates synchronously, the transmission rod 24 has the straight gear 25 fixedly connected outside, so the rotation of the transmission rod 24 directly drives the straight gear 25 to rotate, with the rotation of the straight gear 25, the rack plate 26 meshingly connected outside moves straight forward, the movement of the rack plate 26 further drives the connecting block 27 fixedly connected below to move forward synchronously, at the same time, the connecting block 27 drives the moving plate 28 fixedly connected to the bottom to move forward as a whole during the movement, and the installation block 8 installed outside both sides of the moving plate 28 moves synchronously with the moving plate 28 due to the fixed connection, finally, the installation block 8 moves from the rear end position inside the box body 2 to the front side position inside the box body 2, at this time, the operator can immediately stop the operation of the motor 21, so that the moving plate 28 remains at the front end position and does not move any more, in this state, the outside of the installation block 8 is completely exposed to the front side of the box body 2, the maintenance personnel do not need to put their hands into the inside of the box body 2, but only need to directly and accurately install the electrical component 9 to the preset installation position outside the installation block 8 at the front end of the box body 2, after the installation of the electrical component 9 is completed, the operator starts the motor 21 again, so that the motor 21 resets the moving plate 28 and the installation block 8, through the above structure, when installing the electrical component 9 inside the electric energy metering box, the problem that the maintenance personnel must put their hands into the inside of the box body 2 and the operation space is narrow and limited in the traditional installation process can be solved, the operation difficulty in the installation and disassembly process is reduced, a lot of manual time is saved, and the installation efficiency is improved.

[0037] Please refer to the attached drawings Figure 4 -attached drawings Figure 12The sealing mechanism comprises a telescopic rod 32 fixedly connected to the bottom left side of the box body 2, a second spring 33 externally sleeved on the telescopic rod 32, a moving block 34 fixedly connected to the top of the telescopic rod 32, a protruding block 35 fixedly connected to the top of the moving block 34, a sealing plate 36 fixedly connected to the external right side of the moving block 34, and the sealing plate 36 is made of rubber material. The sealing plate 36 is slidably connected to the inside of the threading hole 31, and the sealing plate 36 made of rubber material can improve the sealing effect of the threading hole 31. A push block 37 is slidably connected to the lower left side of the box body 2, a plug rod 38 is fixedly connected to the inside of the push block 37, a plug hole 39 is formed in the inside of the protruding block 35, the plug rod 38 is inserted into the plug hole 39, the position of the protruding block 35 is limited, a third sliding hole 52 is formed in the bottom left side of the box body 2, and the protruding block 35 is slidably connected to the inside of the third sliding hole 52. The third sliding hole 52 facilitates the movement of the protruding block 35.

[0038] Specifically, when accessing the cable through the threading hole 31, first of all, the operator needs to move the protrusion 35 beside the threading hole 31, push the protrusion 35 to drive the fixedly connected moving block 34 at the bottom to translate leftwards, in the process of moving the moving block 34 leftwards, the moving block 34 will drive the sealing plate 36 fixedly connected outside the right side to move together, thereby gradually opening the threading hole 31, so that the subsequent cable wiring work can be carried out smoothly, at the same time, with the displacement of the moving block 34, the telescopic rod 32 fixedly connected outside the left side will also be extruded, causing the telescopic rod 32 to deform, thereby driving the second spring 33 outside the sleeve to simultaneously elastically deform, when the protrusion 35 moves leftward to the position of the plug rod 38, the operator stops moving, and at this time the sealing plate 36 completely exposes the threading hole 31, so that the threading hole 31 can be conveniently used for the arrangement of the cable, in this process, the operator needs to align the plug hole 39 inside the protrusion 35 with the plug rod 38, next, push the push block 37, so that the push block 37 drives the plug rod 38 to move synchronously, until the plug rod 38 is completely inserted into the plug hole 39 inside the protrusion 35, thereby completing the limiting operation of the sealing plate 36, so that it is fixed in place, in the process of cable wiring, the operator successfully inserts the required cable into the inside of the box 2 through the threading hole 31, at this time, due to the limiting of the sealing plate 36, the threading hole 31 is kept in an open state, facilitating the smooth introduction of the cable, when the threading hole 31 is not used, the operator can take out the cable from the threading hole 31, then operate the push block 37 again, push the plug rod 38 to make it disengage from the plug hole 39 inside the protrusion 35, thereby releasing the limiting, at this time, the second spring 33 will release its elastic potential energy after being pressed, driving the sealing plate 36 to reset to the original position, thereby sealing the threading hole 31, avoiding potential risks such as dust and debris intrusion caused by long-term exposure of the hole, through the design, the threading hole 31 of the electric energy metering box can be conveniently opened for cable wiring during use; when not in use, the hole can be easily resealed, avoiding the one-time opening mode of the traditional electric energy metering box, improving the flexibility and safety of the equipment.

[0039] Please refer to the attached Figure 3 - attached Figure 10The heat dissipation mechanism comprises a ventilation duct 40 fixedly connected to the left side outside the box body 2, a ventilation plate 48 installed on the right side inside the ventilation duct 40, a dustproof plate 47 installed on the left side inside the ventilation duct 40, a motor 42 arranged in the middle of the ventilation duct 40, a rotating disc 43 fixedly connected to the right side output end of the motor 42, a plurality of fan blades 44 fixedly connected to the outer periphery of the rotating disc 43, a protective cover 50 sleeved on the outer side of the ventilation duct 40, a plurality of plug blocks 49 fixedly connected to the outer sides of the ventilation duct 40, a plurality of insertion grooves 51 formed in the inner sides of the protective cover 50, and an installation ring 41 fixedly connected to the middle of the ventilation duct 40.

[0040] Specifically, in the heat dissipation operation of the box 2, first start the motor 42, the motor 42 starts to run after power on, its right side output end will drive the rotating disc 43 to rotate continuously because of the fixed connection with the rotating disc 43, with the rotation of the rotating disc 43, the fan blade 44 fixedly connected to the outer four around will rotate synchronously, the fan blade 44 forms air flow in the rotation process, and the external air source is continuously sucked into, at this time, the air will enter through the outside of the dustproof plate 47 installed on the left side of the ventilation duct 40, the dustproof plate 47 can block the dust, particles and small foreign matters in the external air, so as to ensure that the air entering the inside of the box 2 is relatively clean, the filtered air will be transported to the inside of the box 2 through the ventilation plate 48, and the ventilation operation is performed on the electric element 9, so that the electric element 9 can still maintain a reasonable working temperature in a long time running process, when the protective cover 50 is installed outside the ventilation duct 40, the insertion slot 51 opened in the inside of the protective cover 50 needs to be aligned with the insertion block 49 fixedly connected to the outside of the ventilation duct 40, then the insertion block 49 is stably inserted into the inside of the insertion slot 51 through the pushing operation, so that the quick installation of the protective cover 50 is completed, after the installation is completed, the protective cover 50 can effectively cover the outside of the ventilation duct 40, which not only provides physical protection for the ventilation duct 40, but also plays a key role in bad weather, especially in rainy weather, the protective cover 50 can block the rainwater from entering the ventilation duct 40, so as to avoid the risk of corrosion, short circuit or damage of the electric element 9 caused by the rainwater penetrating into the inside of the box 2, at the same time, since the structure design of the protective cover 50 takes into account the dual functions of ventilation and isolation, even in the state of installing the protective cover 50, the air can still smoothly enter the ventilation duct 40 and enter the inside of the box 2 after being filtered by the dustproof plate 47, so that the heat dissipation operation will not be hindered, thereby the heat dissipation mechanism can not only maintain good ventilation and heat dissipation effect, but also realize safety protection in rainy days to avoid hidden troubles caused by rainwater invasion, through the above structure design, compared with the traditional heat dissipation mode relying on air convection through the heat dissipation hole, the heat dissipation effect is improved, so that the electric element 9 in the inside of the box 2 can maintain a stable temperature environment in operation, at the same time, the protective cover 50 added outside the ventilation duct 40 can effectively block the rainwater, dust and other external adverse factors, and can maintain stable air circulation, thereby prolonging the service life of the electric energy metering box.

[0041] Please refer to the attached Figure 7 -attached Figure 16The digital amplification mechanism comprises a connecting block 45 fixedly connected in the middle of the two transparent windows 4, an adjusting block 55 slidingly connected in the connecting block 45, a sliding rod 56 fixedly connected in the middle of the adjusting block 55, guide blocks 57 slidingly connected on the outer sides of the sliding rod 56, third springs 58 fixedly connected in the middle of the two guide blocks 57, the third springs 58 being sleeved on the middle of the sliding rod 56, positioning plates 59 fixedly connected on the outer front sides of the two guide blocks 57, a guide plate 60 fixedly connected on the outer front side of the adjusting block 55, frames 61 fixedly connected on the bottom sides of the guide plate 60, magnifying glasses 62 installed in the middle of the two frames 61, the magnifying glasses 62 being convenient for amplifying the values displayed on the outer sides of the electrical components 9, baffles 64 provided on the outer front sides of the two frames 61, the baffles 64 being convenient for protecting the magnifying glasses 62, positioning blocks 65 fixedly connected on the outer sides of the two baffles 64, the positioning blocks 65 being provided on the inner sides of the two frames 61, extension blocks 53 fixedly connected on the outer sides of the connecting block 45, installation holes 54 provided in the inner sides of the two extension blocks 53, the two positioning plates 59 being inserted into any two installation holes 54, the installation holes 54 being convenient for the installation of the positioning plates 59, an adjusting hole 46 provided on the outer side of the connecting block 45, the two positioning plates 59 and the guide plate 60 being slidingly connected in the adjusting hole 46, the adjusting hole 46 being convenient for the movement of the positioning plates 59 and the guide plate 60, first positioning holes 63 provided on the outer front sides of the two frames 61, the positioning blocks 65 being inserted into the first positioning holes 63, and second positioning holes 66 provided on the outer lower sides of the two frames 61.

[0042] Specifically, when observing the value displayed outside the electrical component 9 through the transparent window 4, first, the movable baffle 64 and the positioning block 65 fixedly connected outside the two sides thereof are operated together, the positioning block 65 is detached from the inside of the two first positioning holes 63, after the operation personnel complete this step, the baffle 64 is taken down as a whole, then the positioning block 65 is accurately inserted into the inside of the two second positioning holes 66, so that the repositioning of the baffle 64 is realized, the disassembly and reinsertion of the other baffle 64 are completely the same as this, then the operator needs to relatively move the two positioning plates 59, the two positioning plates 59 will drive the two guide blocks 57 fixedly connected at the bottom thereof to relatively move synchronously during the relative movement, the two guide blocks 57 will produce a extrusion effect on the third spring 58 fixedly connected at the middle part thereof when relatively displacing, so that the third spring 58 elastically deforms under stress and temporarily stores elastic potential energy, when the top of the two positioning plates 59 gradually detaches from the middle part of the mounting hole 54 opened in the inside of the two extension blocks 53, the two positioning plates 59 can be pushed upwards in turn, at this time, the positioning plate 59 will drive the link block 45 and the guide plate 60 fixedly connected with the outside front side thereof to move upwards together, during the upward movement of the guide plate 60, the frame 61 fixedly connected with the bottom two sides thereof will further rise as a whole, so that the synchronous upward displacement of the two frames 61 is realized, the frame 61 will also move the two magnifying glasses 62 installed in the inside thereof upwards when moving, when the two magnifying glasses 62 move to the corresponding position outside the transparent window 4, the operator can perform the next fixing operation, at this time, only need to align the two positioning plates 59 to the mounting hole 54 opened outside the two extension blocks 53, and hold the two magnifying glasses 62 with hands, loosen the positioning plate 59, under the counteraction of the third spring 58, the two positioning plates 59 can be automatically inserted into the mounting hole 54 corresponding thereto, so as to fix the position of the magnifying glass 62, after the above steps are completed, the operator can clearly observe the value information displayed outside the electrical component 9 in the inside of the box body 2 through the cooperation of the transparent window 4 and the magnifying glass 62, this observation method can complete the reading without directly opening the box door 3 or putting hands into the inside of the box body 2, greatly improving the safety and convenience of operation, this structure not only improves the intuitiveness and accuracy of value observation, but also avoids the potential safety hidden danger caused by frequent opening of the box door 3, at the same time, reduces the adverse effects of external dust or moisture entering the box body 2 on the internal electrical component 9, especially the design of the magnifying glass 62, even if the display size of the electrical component 9 is small or the installation position is deep, the operator can still clearly identify the value at a long distance, avoiding misjudgment or misreading caused by unclear observation, so as to further improve the accuracy of data reading and the overall operation convenience.

[0043] The implementation principle of the embodiment of the application is that: when the damaged electrical element 9 is disassembled, first hold the damaged electrical element 9, then move the two clamping plates 18 to the two sides, the two clamping plates 18 move to the two sides synchronously with the two connecting plates 17 fixedly connected outside moving to the two sides, the two connecting plates 17 move to the two sides with the two sliding blocks 13 fixedly connected at the bottom moving to the two sides, the two sliding blocks 13 move to the two sides with the four connecting rods 12 synchronously moving in the guide grooves 67 opened at the two sides inside the two sliding blocks 13, the four connecting rods 12 move to the two sides with the two rotating plates 11 fixedly connected outside rotating outside the connecting ring 10, and at the same time, the two sliding blocks 13 move to the two sides to extrude the plurality of first springs 16 fixedly connected outside, so that the first springs 16 are deformed, when the two clamping plates 18 are separated from the two sides outside the electrical element 9, the damaged electrical element 9 can be taken out for replacement, when installation, the above steps are repeated, when the two clamping plates 18 are separated from each other, the electrical element 9 is placed in the middle of the two clamping plates 18, then the two clamping plates 18 are loosened, the two clamping plates 18 are reset under the reaction force of the first springs 16 to fix the electrical element 9, so that when the electrical element 9 in the electrical energy metering box is damaged, the electrical element 9 can be quickly installed and disassembled, the dependence on professional maintenance personnel is reduced, the labor cost is reduced, and the maintenance efficiency is improved; When the electrical element 9 is installed in the electrical energy metering box, first, the box door 3 is opened, then the motor 21 is started, the motor 21 rotates with the first bevel gear 22 fixedly connected at the output end, the first bevel gear 22 rotates with the second bevel gear 23 meshingly connected at the lower part, the second bevel gear 23 rotates with the transmission rod 24 fixedly connected inside, the transmission rod 24 rotates with the straight gear 25 fixedly connected outside, the straight gear 25 rotates with the rack plate 26 meshingly connected outside to move forward, the rack plate 26 moves with the connecting block 27 fixedly connected at the lower part to move forward synchronously, and at the same time, the moving plate 28 fixedly connected at the bottom and the installation block 8 fixedly connected at the two sides outside the moving plate 28 move when the connecting block 27 moves, the installation block 8 fixedly connected at the two sides outside the moving plate 28 is moved from the inside of the box body 2 to the inside front side of the box body 2, and then the motor 21 is stopped, then the electrical element 9 is installed outside the installation block 8, and after installation is completed, the motor 21 is started again, and the moving plate 28 is reset, so that when the electrical element 9 is installed in the electrical energy metering box, the moving plate 28 and the installation block 8 in the box body 2 can be moved from the inside of the box body 2 to the inside front side of the box body 2, the maintenance personnel can directly operate outside or at the front end of the box body 2, the difficulty of reaching into the inside of the box body 2 is reduced, the installation and disassembly time is saved, and the work efficiency is improved; When the cable is accessed through the threading hole 31, first move the protrusion 35 with the bottom fixedly connected moving block 34 to the left, move the sealing plate 36 fixedly connected to the outside right side when the moving block 34 moves, and extrude the telescopic rod 32 fixedly connected to the outside left side when the moving block 34 moves, so that the telescopic rod 32 is deformed under stress, and the second spring 33 outside the telescopic rod 32 is deformed, when the protrusion 35 moves to the position of the plug rod 38, the movement is stopped, at this time, the sealing plate 36 exposes the threading hole 31, then align the plug hole 39 inside the protrusion 35 with the plug rod 38, then move the push block 37 with the plug rod 38, so that the plug rod 38 is inserted into the plug hole 39 inside the protrusion 35, the limiting operation of the sealing plate 36 is completed, finally, the cable can be inserted into the inside of the box 2 through the threading hole 31, when the threading hole 31 is not used, the cable is taken out from the inside of the threading hole 31, then move the push block 37 to make the plug rod 38 separate from the plug hole 39 inside the protrusion 35, at this time, the sealing plate 36 is reset under the reaction force of the second spring 33, the threading hole 31 is sealed, which realizes that the threading hole 31 can be easily opened for cable wiring when used, and can be resealed when not used, avoiding hidden dangers caused by long-term opening of the hole, which is different from the traditional one-time opening method, and the flexibility of the electric energy metering box is improved. When the inside of the box 2 is cooled, first start the motor 42, the motor 42 rotates the rotating disc 43 fixedly connected to the right output end, the rotating disc 43 rotates the fan blade 44 fixedly connected to the outside four sides, the outside air is sucked in through the dustproof plate 47 installed on the inside left side of the ventilation duct 40 through the rotation of the fan blade 44, the dustproof plate 47 is used for filtering the sucked air, the filtered air is delivered to the inside of the box 2 through the ventilation plate 48 to cool the electrical elements 9 in the box 2, when the protective cover 50 is installed outside the ventilation duct 40, first align the insertion slot 51 inside the two sides of the protective cover 50 with the insertion block 49 fixedly connected to the outside two sides of the ventilation duct 40, then insert the insertion block 49 into the inside of the insertion slot 51 to complete the installation of the protective cover 50, install the protective cover 50 outside the ventilation duct 40, so that the cooling mechanism can operate even in rainy days, avoiding rainwater entering the inside of the electric energy metering box in rainy days, realizing convenient cooling operation of the electric energy metering box, which is different from the traditional cooling method through the cooling hole, the cooling effect of this method is better, and the protective cover 50 is installed outside the ventilation duct 40, which can block rainwater from entering the inside of the box 2, maintaining good ventilation and cooling, and realizing isolation and protection, thereby prolonging the service life of the electric energy metering box.

[0044] In the through transparent window 4 viewing electrical element 9 outside display value, first, will move the baffle 64 with the outside two side fixed connection positioning block 65 from the inside of two first positioning hole 63, then after taking off the baffle 64, two positioning block 65 is inserted into the inside of two second positioning hole 66, the operation mode of another baffle 64 is same with it, then in relative movement two positioning plate 59, two positioning plate 59 relative movement with bottom fixed connection two guide block 57 relative movement, two guide block 57 relative movement to the middle fixed connection third spring 58 is extruded, make third spring 58 force occurs deformation, then when the top of two positioning plate 59 from two extension block 53 inside two installation hole 54 middle part of two, can move two positioning plate 59 with the interface block 45 outside front side fixed connection guide plate 60 upward, in guide plate 60 upward moves with bottom two side fixed connection frame 61 upward, two frame 61 upward moves with inside fixed connection two magnifying glass 62 upward, when two magnifying glass 62 moves to two transparent window 4 outside, can two positioning plate 59 with two extension block 53 outside two installation hole 54 alignment, then in hand holding two magnifying glass 62, loosen two positioning plate 59, under the action of third spring 58, two positioning plate 59 is inserted into the two installation hole 54 corresponding, can complete the position fixing of two magnifying glass 62, then the operator through two magnifying glass 62 cooperation, through two transparent window 4 viewing box 2 inside electrical element 9 outside display value, can clearly observe the value of the internal electrical element 9 outside display in the box 2 outside, without directly open box door 3 or stretch hand into box 2 can complete reading, this structure not only improves the value observation intuitiveness and accuracy, also avoid the security risks brought by frequent opening box door 3, reduce the influence of environmental dust or humidity into box 2 to element, at the same time, the setting of magnifying glass 62 makes the value even in smaller display size or distance can be clearly identified, further reduce the misreading rate, improve the convenience of operation.

Claims

1. A modular electric energy metering cabinet comprising a support (1), characterized in that, The support (1) top fixedly connected with the box (2), the box (2) outside left side is mounted with heat dissipation mechanism, the box (2) top is provided with adjusting mechanism, the box (2) inside is provided with moving plate (28), the moving plate (28) outside both sides are fixedly connected with the mounting block (8), a plurality of the mounting block (8) inside is provided with dismounting mechanism, a plurality of the mounting block (8) outside front side is provided with electrical components (9), the box (2) lower left side is provided with threading hole (31), the threading hole (31) inside is provided with sealing mechanism, the box (2) outside front side is mounted with box door (3), right side the box door (3) outside both sides are mounted with transparent window (4), two the transparent window (4) outside is provided with digital magnification mechanism; The dismounting mechanism includes a connecting ring (10), the connecting ring (10) is arranged in the plurality of mounting blocks (8), the connecting ring (10) outside both sides are rotatably connected with the rotating plate (11), two the rotating plate (11) outside both sides are rotatably connected with the connecting rod (12), a plurality of the connecting rod (12) outside is provided with sliding block (13), two the sliding block (13) top are fixedly connected with the limiting block (14), two the sliding block (13) outside both sides are fixedly connected with the first spring (16), a plurality of the first spring (16) bottom is fixedly connected in the inside both sides of the mounting block (8), two the sliding block (13) outside front side are fixedly connected with the connecting plate (17), two the connecting plate (17) top are fixedly connected with the clamping plate (18), two the clamping plate (18) outside are provided with anti-skid groove, two the sliding block (13) inside both sides are provided with guide slot (67), a plurality of the connecting rod (12) is slidably connected in a plurality of the guide slot (67) inside.

2. The modular electric energy metering box according to claim 1, characterized in that, The adjusting mechanism includes a motor (21), the motor (21) is arranged in the top left side of the box (2), the motor (21) output is fixedly connected with the first bevel gear (22), the first bevel gear (22) lower part is meshed with the second bevel gear (23), the second bevel gear (23) inside is fixedly connected with the transmission rod (24), the transmission rod (24) lower part is fixedly connected with the spur gear (25), the spur gear (25) outside is meshed with the rack plate (26), the rack plate (26) lower part is fixedly connected with the connecting block (27), the connecting block (27) bottom is fixedly connected in the top of the moving plate (28).

3. The modular electric energy metering box according to claim 1, characterized in that, The sealing mechanism includes a telescopic rod (32) fixedly connected to the bottom left side of the box (2), the telescopic rod (32) is externally sleeved with a second spring (33), the top of the telescopic rod (32) is fixedly connected with a moving block (34), the top of the moving block (34) is fixedly connected with a protruding block (35), the external right side of the moving block (34) is fixedly connected with a sealing plate (36), the sealing plate (36) is made of rubber material, the sealing plate (36) is slidingly connected inside the threading hole (31), the lower left side of the box (2) is slidingly connected with a push block (37), the push block (37) is fixedly connected with a plug rod (38) inside.

4. The modular electric metering box of claim 1, wherein, The heat dissipation mechanism includes a ventilation duct (40) fixedly connected to the external left side of the box (2), the internal right side of the ventilation duct (40) is installed with a ventilation plate (48), the internal left side of the ventilation duct (40) is installed with a dustproof plate (47), the middle of the ventilation duct (40) is provided with a motor (42), the output end of the motor (42) is fixedly connected with a rotating disc (43), the external periphery of the rotating disc (43) is fixedly connected with a plurality of fan blades (44), the ventilation duct (40) is externally sleeved with a protective cover (50).

5. The modular electric metering box of claim 1, wherein, The digital amplification mechanism includes an adapter block (45) fixedly connected to the middle of the two transparent windows (4), the internal slidingly connected with an adjusting block (55), the middle of the adjusting block (55) is fixedly connected with a sliding rod (56), the external two sides of the sliding rod (56) are slidingly connected with a guide block (57), the middle of the two guide blocks (57) is fixedly connected with a third spring (58), the third spring (58) is sleeved in the middle of the sliding rod (56), the external front side of the two guide blocks (57) is fixedly connected with a positioning plate (59), the external front side of the adjusting block (55) is fixedly connected with a guide plate (60), the bottom of the guide plate (60) is fixedly connected with a frame (61) on both sides, the middle of the two frames (61) is installed with a magnifying glass (62), the external front side of the two frames (61) is provided with a baffle (64), the external two sides of the two baffles (64) are fixedly connected with a positioning block (65), a plurality of positioning blocks (65) are arranged on the internal two sides of the two frames (61).

6. The modular electric metering box of claim 1, wherein, The first sliding hole (19) is arranged on the outer side of the mounting block (8), the two connecting plates (17) are slidably connected in the first sliding hole (19), the material of the clamping plate (18) is rubber, the limiting groove (15) is arranged on the inner side of the mounting block (8), the two limiting blocks (14) are slidably connected in the limiting groove (15), the protective shell (7) is arranged on the top of the box body (2), the clamping groove (20) is arranged on the left side of the top of the box body (2), the protective shell (7) is inserted with the clamping groove (20), the spot welding wire net (5) is arranged on the right side of the outer side of the box body (2), the knock-off hole (6) is arranged on the upper side of the spot welding wire net (5), and the knock-off hole (6) is arranged on the right side of the outer side of the box body (2).

7. The modular electric metering box according to claim 3, wherein, The insertion hole (39) is arranged in the protruding block (35), the insertion rod (38) is inserted with the insertion hole (39), the third sliding hole (52) is arranged on the left side of the bottom of the box body (2), and the protruding block (35) is slidably connected in the third sliding hole (52).

8. The modular electric metering box of claim 4, wherein, The insertion block (49) is fixedly connected to the outer side of the ventilation pipeline (40), the insertion slot (51) is arranged in the inner side of the protective cover (50), the insertion block (49) is inserted with the insertion slot (51), the mounting ring (41) is fixedly connected to the middle of the ventilation pipeline (40), and the motor (42) is fixedly connected in the mounting ring (41).

9. The modular electric metering box of claim 2, wherein, The through hole (29) is arranged on the front side of the upper side of the box body (2), the rack plate (26) is slidably connected in the through hole (29), and the second sliding hole (30) is arranged in the inner top of the box body (2).

10. The modular electric metering box of claim 5, wherein, The extension block (53) is fixedly connected to the outer side of the connecting block (45), the mounting hole (54) is arranged in the inner side of the extension block (53), the positioning plate (59) is inserted with the mounting hole (54), the adjusting hole (46) is arranged on the outer side of the connecting block (45), the positioning plate (59) and the guide plate (60) are slidably connected in the adjusting hole (46), the first positioning hole (63) is arranged on the outer side of the front side of the frame (61), the positioning block (65) is inserted with the first positioning hole (63), and the second positioning hole (66) is arranged on the outer side of the lower side of the frame (61).

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