A modular meter box

Abstract

The application relates to the technical field of electric meter boxes, in particular to a modular electric meter box which comprises a box body structure, the box body structure comprises a box cover assembly, a box back assembly and a box side plate assembly arranged between the two, the three are independent structures and can be assembled into a complete electric meter box, the box cover assembly comprises a box cover plate and a plurality of box doors hingedly arranged on the box cover plate, the box back assembly comprises a box back plate parallel to the box cover plate, the box side plate assembly comprises a ring-shaped ring side plate, ring-shaped mounting grooves are arranged on the opposite surfaces of the box cover plate and the box back plate and close to the positions of the four peripheral edges of the two, and the two side edges of the ring side plate can be inserted and fixed into the corresponding mounting grooves. The electric meter box designed in the application is split arranged, has the effects of convenient transportation and carrying and effectively reduced overall volume.

Description

Technical Field

[0001] This application relates to the technical field of meter boxes, and in particular to a modular meter box. Background Technology

[0002] Meter boxes are an indispensable basic supporting equipment in power supply systems. They are mainly used to house power metering and distribution components such as electricity meters, circuit breakers, and terminals. They are widely used in various power supply scenarios such as residential communities, commercial buildings, industrial parks, and outdoor transformer substations. They play a core role in power metering, line protection, and circuit tapping. Their structural stability, ease of installation, and ease of transportation directly affect the efficiency of power construction and the quality of subsequent operation and maintenance.

[0003] Currently, most traditional meter boxes on the market are made of steel or stainless steel plates, integrally welded together. The frame, back panel, and side panels are all fixed welded structures, and the overall size and shape are not disassembled or adjustable after forming. While this type of integrated welded meter box has advantages such as high structural strength, good protection performance, and strong resistance to external impacts, meeting the needs of conventional outdoor and indoor power supply environments, it has significant technical defects in actual production, warehousing, and logistics. The integrally welded meter box is a fixed structure; whether it's a single-meter or multi-meter centralized meter box, it is a single, complete box after forming, occupying a large volume and cannot be disassembled for storage or stacking. After mass production, manufacturers need to occupy a large amount of storage space, resulting in extremely low warehouse utilization and significantly increasing the company's warehousing operating costs. Secondly, during logistics and transportation, the fixed shape and incompressible design of integrated meter boxes prevent their tight stacking, resulting in poor loading efficiency and a limited number of boxes that can be carried in a single shipment. This significantly increases long-distance logistics costs, and the edges and surfaces of the boxes are prone to damage such as bumps, deformation, and paint chipping during transport, leading to a high product loss rate. Furthermore, traditional welded integrated meter boxes have fixed specifications and poor versatility. Custom-made integrated boxes with different sizes and number of meters are required for different power distribution renovation scenarios in different communities, buildings, and with different numbers of households, resulting in low production and inventory flexibility. Large integrated meter boxes are also heavy and difficult to move, requiring multiple people to coordinate handling and hoisting on-site, greatly increasing on-site labor costs and operational difficulty. This is especially problematic for scenarios such as renovation of older communities, high-altitude operations, and installation in confined spaces, where the handling and installation of integrated meter boxes are extremely inconvenient, severely impacting the construction progress and efficiency of power distribution projects.

[0004] In summary, existing meter boxes generally adopt a welded, one-piece molded structure, which suffers from problems such as large overall size, indivisibility, inconvenient storage and transportation, high difficulty in handling and construction, and poor versatility. These issues make them unsuitable for the current demands of power engineering construction, which require mass production, centralized transportation, and flexible installation. Therefore, there is an urgent need to design a detachable, modularly assembled meter box to address the technical pain points of inconvenient transportation and storage, and low construction efficiency of existing one-piece meter boxes. Summary of the Invention

[0005] To address the problems of existing meter boxes being large in size and inconvenient to transport and handle, this application provides a modular meter box.

[0006] This application provides a modular meter box, which adopts the following technical solution: A modular meter box includes a box structure comprising a cover assembly, a back assembly, and a side panel assembly disposed between the two. The three are independent structures that can be assembled into a complete meter box. The cover assembly includes a cover plate and multiple doors hinged to the cover plate. The back assembly includes a back plate parallel to the cover plate. The side panel assembly includes annular side plates. Annular mounting grooves are formed on the opposing surfaces of the cover plate and the back plate near their perimeters. The two sides of the annular side plates can be inserted and fixed into the corresponding mounting grooves.

[0007] By adopting the above technical solution, the meter box is divided into three independent components, abandoning the traditional one-piece welded structure. After production, each component can be stored and transported separately, solving the problem of the large overall size of traditional meter boxes and the inability to be disassembled, stored, and stacked. This improves warehouse utilization and transportation loading rate, reduces warehousing and logistics costs, and reduces damage from bumps, paint chipping, and deformation during transportation. The assembly method, which uses the edge of the side panels to insert into the annular mounting groove, eliminates the need for welding and allows for rapid on-site assembly of the complete meter box, reducing assembly difficulty at construction sites. The hinged multi-door design allows for individual opening of different parts of the box, facilitating later zonal inspection and maintenance. The box cover, back panel, and side panels are joined together to form the basic enclosure structure of the box, constituting the basic protective shell of the meter box and providing installation space for internal components such as the electricity meter and circuit breaker.

[0008] Preferably, the ring side panel includes a left side panel and a right side panel arranged vertically symmetrically, and an upper side panel and a lower side panel arranged vertically parallel to each other. The left side panel, right side panel, upper side panel and lower side panel are connected end to end, and adjacent side panels are connected by a hinge, so that the ring side panel can be unfolded and folded.

[0009] By adopting the above technical solution, during the warehousing and transportation stages, the ring side panels can be folded flat along the hinges, significantly reducing the space occupied by the ring side panels, further increasing the stacking capacity, and reducing logistics and transportation costs. On the construction site, the ring side panels can be directly unfolded for insertion and assembly. The folding and unfolding operation is simple, requiring no additional tools, and is suitable for construction scenarios such as renovation of old residential areas and high-altitude operations, reducing the difficulty of handling and assembly operations. The hinge connection ensures the continuity of the connection between each side panel, forming a complete ring-shaped protective sidewall after unfolding, ensuring the sealing of the container's sidewalls.

[0010] Preferably, the inner side of the ring side plate is provided with multiple sets of positioning components, and the multiple sets of positioning components are provided for each side plate. The positioning components include a positioning rod fixed to the box cover plate and a positioning cylinder fixed to the box back plate. The positioning rod can be inserted into the positioning cylinder, and the inner side of the ring side plate can overlap the corresponding positioning cylinder.

[0011] By adopting the above technical solution, the positioning rod is inserted into the positioning cylinder during assembly to achieve axial positioning and limiting between the cover plate and the back plate, assisting in precise alignment of the edge of the ring side plate with the annular mounting groove, reducing the difficulty of insertion and assembly alignment, and avoiding assembly misalignment. Multiple sets of positioning cylinders provide multi-point support to the inner side of the ring side plate, replacing the frame support function of the traditional welded box body, improving the overall structural strength of the modular box body, enhancing the box body's resistance to compression and impact, and preventing the box body from deforming under pressure. The insertion structure of the positioning rod and positioning cylinder provides internal limiting constraints for the cover and back plate components, preventing the cover plate and back plate from shifting and separating after assembly, and improving the structural stability of the box body after assembly.

[0012] Preferably, the box structure further includes a fixing assembly disposed on the upper side plate, which includes a sliding rod slidably disposed on the upper side plate, fixing blocks fixed at both ends of the sliding rod, fixing rings disposed at both ends of the sliding rod and fixed to the box cover plate and the box back plate, and a driving component for driving the sliding rod to slide. The sliding rod is disposed along the width direction of the upper side plate, and the fixing blocks are inserted into the fixing rings.

[0013] By adopting the above technical solution, based on the insertion and installation of the side panel ring into the mounting groove, the cover plate, back plate, and top side plate are mechanically locked and fixed by the insertion and locking of the fixing block and the fixing ring, preventing the insertion position from loosening or shifting. This achieves the fixation of the cover plate, back plate, and side panel ring, assembling them into a complete box structure. The sliding rod drives the fixing blocks at both ends to simultaneously complete the insertion or withdrawal, realizing locking and unlocking. In the unlocked state, each module can be quickly disassembled, while in the locked state, the integrity of the box body is ensured, balancing convenient assembly and disassembly with reliable connection.

[0014] Preferably, a pair of parallel guide rods are fixed on the upper side plate. The guide rods are arranged along the length of the upper side plate, and the two guide rods pass through the sliding rod, which is slidably engaged with the guide rods.

[0015] By adopting the above technical solution, the guide rod provides sliding guidance constraint for the sliding rod, restricting the sliding rod's movement trajectory and preventing it from deflecting, tilting, or jamming. This ensures that the sliding rod slides smoothly along the set direction and guarantees that the fixing block and fixing ring can be accurately aligned and inserted. The guide rod also provides radial support for the sliding rod, sharing the locking force, improving the overall structural reliability of the fixing assembly, and extending the service life of the mechanism.

[0016] Preferably, the opposing surfaces of the two fixing blocks are set as inclined surfaces, and the cross-section of the fixing block is a right trapezoid. The side of the right-angled side of the right trapezoid in the cross-section of the fixing block is fixed to the sliding rod, and the cross-sectional area of ​​the fixing block in the direction parallel to the sliding rod gradually decreases from the sliding rod. The tip of the fixing block can pass through the fixing ring first.

[0017] By adopting the above technical solution, the tip guide structure facilitates the alignment of the fixing block into the fixing ring. When there is a slight positional deviation in the assembly, the inclined surface plays an automatic correction and guiding role, reducing the requirements for the machining accuracy of parts and the assembly alignment accuracy, and improving the assembly fault tolerance rate. The trapezoidal inclined surface fit can produce a certain wedge tightening effect during the locking process, making the fixing block and the fixing ring fit more tightly, reducing the assembly gap, and further improving the locking firmness. In addition, as the fixing block is inserted into the fixing ring, the edge of the ring side plate can be gradually inserted into the mounting groove of the box cover plate and the box back plate.

[0018] Preferably, the driving component includes a drive shaft that passes through the upper side plate and is rotatably disposed therethrough, an eccentric wheel fixed to the upper end of the drive shaft and located on the outside, and a drive rod fixed to the lower end of the drive shaft. The eccentric wheel is rotatably abutting against the sliding rod.

[0019] By adopting the above technical solution, manually rotating the drive rod can drive the drive shaft and eccentric wheel to rotate. The eccentric contour of the eccentric wheel pushes the sliding rod to produce displacement, converting the manual rotation action into the linear sliding of the sliding rod, thus achieving locking and unlocking. No additional special tools are required, and on-site operation is simple. The eccentric wheel mechanism has a stroke amplification effect, and a small rotation angle is sufficient to achieve the effective sliding stroke of the sliding rod, making operation labor-saving and allowing construction personnel to quickly complete the locking operation.

[0020] Preferably, a limiting plate is fixed on the sliding rod, and a limiting hole is provided on the limiting plate along the sliding direction of the sliding rod, and the upper end of the drive shaft is slidably fitted in the limiting hole.

[0021] By adopting the above technical solution, the limiting hole constrains the relative motion stroke between the drive shaft and the limiting plate, limiting the effective working range of the eccentric wheel rotation, avoiding excessive rotation of the eccentric wheel that could cause overtravel damage to the mechanism, and simultaneously limiting the maximum sliding displacement of the sliding rod to prevent the fixed block from excessively protruding. This ensures that the eccentric wheel always maintains effective contact and transmission with the sliding rod, preventing the eccentric wheel from disengaging from the sliding rod and causing locking failure, thus improving the reliability of the drive components.

[0022] Preferably, a fixing member is provided at the lower end of the drive shaft. The fixing member includes a fixing rod fixed to the lower end of the drive shaft and arranged along its length. The cross-section of the fixing rod is rectangular. The fixing rod passes through the drive rod and the two are slidably engaged. A U-shaped fixing seat is fixed on the upper side plate. The drive rod can be rotatably engaged with the fixing seat. A tension spring is sleeved on the drive shaft. One end of the spring is fixed to the drive rod, and the other end is fixed to the upper side plate.

[0023] By adopting the above technical solution, the drive rod, after rotating to its designated position, engages with the U-shaped fixing seat, achieving mechanical self-locking of the drive rod's angular position. This prevents the eccentric wheel from rotating and loosening due to vibration, avoids the fixing block from detaching from the fixing ring, and ensures a stable locking state. The tension spring continuously provides elastic tension, keeping the drive rod pressed tightly against the fixing seat, resisting the risk of loosening caused by vibration and bumps, and improving locking reliability under outdoor conditions. The rectangular fixing rod slides with the drive rod, which can both transmit torque to drive the drive shaft to rotate and allow the drive rod to slide axially, realizing the action of the drive rod engaging and disengaging from the fixing seat. The structure is simple and easy to process and assemble.

[0024] Preferably, multiple sliding rods are evenly arranged along the length of the upper side plate, and the multiple sliding rods are connected into a whole by connecting rods. Corresponding fixing blocks are provided at both ends of the sliding rods, and corresponding fixing rings are provided on the box cover plate and the box back plate. The driving component acts on the sliding rod located in the middle position among the multiple sliding rods.

[0025] By adopting the above technical solution, a single drive unit drives the intermediate sliding rod, and the connecting rod drives all the sliding rods to move synchronously, achieving multi-point synchronous locking. This eliminates the need for a separate drive unit for each sliding rod, simplifying the number of components and reducing manufacturing costs. Simultaneous multi-point locking, with the upper side plate locking the cover and back panel at multiple points along its length, ensures even force distribution, avoiding stress concentration caused by localized single-point locking and improving the overall connection rigidity and sealing consistency of the enclosure.

[0026] In summary, this application includes at least one of the following beneficial technical effects: Solving the pain points of traditional welded meter boxes in warehousing and transportation: The box body is made of modular independent components, the side panels are foldable, and all components can be disassembled and stacked, which greatly reduces the storage space occupied, improves the transportation loading rate, and reduces warehousing and logistics costs; at the same time, it avoids the overall box body from being bumped, deformed and paint damaged during transportation, reducing product transportation losses. Convenient assembly and construction, adaptable to complex on-site conditions: The assembly method adopts plug-in and mechanical locking, which eliminates the need for welding, requires few on-site tools, and can be completed by a single person; it is suitable for scenarios such as renovation of old residential areas, high-altitude operations, and installation in confined spaces, reducing the difficulty of handling and installation, and effectively improving the construction efficiency of power distribution projects; The modular structure balances ease of assembly with box strength: through internal support of positioning components and wedge locking of multi-position fixing components, the modular assembly box can achieve structural strength and impact resistance comparable to traditional welded boxes, ensuring the reliability of the meter box while enabling disassembly and folding. Attached Figure Description

[0027] Figure 1 This is a schematic diagram of the overall structure of Embodiment 1 of this application.

[0028] Figure 2 Embodiment 1 of this application is a schematic diagram illustrating the box side panel assembly.

[0029] Figure 3 Embodiment 1 of this application is a schematic diagram illustrating the positioning element.

[0030] Figure 4 Embodiment 1 of this application is a schematic diagram illustrating the fixed component.

[0031] Figure 5 Embodiment 1 of this application is a schematic diagram illustrating the fixed component.

[0032] Figure 6 Embodiment 2 of this application is a schematic diagram illustrating a rainproof component.

[0033] Figure 7 Embodiment 4 of this application is a schematic diagram illustrating the mounting component.

[0034] Explanation of reference numerals in the attached drawings: 1. Case lid assembly; 11. Case lid plate; 12. Case door; 2. Case back assembly; 21. Case back panel; 3. Case side panel assembly; 31. Ring side panel; 311. Left side panel; 312. Right side panel; 313. Upper side panel; 314. Lower side panel; 32. Hinge; 33. Positioning component; 331. Positioning rod; 332. Positioning cylinder; 34. Divider plate; 4. Mounting groove; 41. Sealing strip; 5. Fixing assembly; 51. Sliding rod; 52. Fixing block; 53. Fixing ring; 54. Driving component; 541. Drive shaft; 542. Eccentric wheel; 543. 55. Drive rod; 56. Guide rod; 57. Limiting plate; 58. Limiting hole; 59. Fixing component; 50. Fixing rod; 51. Fixing base; 52. Tension spring; 53. Connecting rod; 60. Rainproof assembly; 61. Upper rainproof plate; 61. Positioning plate; 62. Lower rainproof plate; 63. Left rainproof plate; 64. Right rainproof plate; 65. Hanging plate; 66. Locking assembly; 66. Locking ring; 66. Locking block; 70. Heat dissipation assembly; 71. Heat dissipation hole; 72. Heat dissipation fan; 8. Wiring hole; 91. Mounting component; 92. Mounting rod. Detailed Implementation

[0035] The following is in conjunction with the appendix Figure 1-7 This application will be described in further detail.

[0036] This invention is a modular meter box designed to address the technical pain points of traditional integral welded meter boxes, such as non-separable design, large space occupation during storage and transportation, high transportation losses, difficult construction and handling, and poor versatility. It features modular disassembly and assembly, foldable storage, rapid assembly, strong protection, good heat dissipation, and stable installation, and can be widely adapted to power distribution in various scenarios such as residential communities, commercial buildings, industrial parks, and outdoor transformer substations. Example

[0037] Reference Figure 1 and Figure 2 The present invention discloses a modular meter box, including a box structure. The box structure is a split modular splicing structure, specifically including a box cover assembly 1, a box back assembly 2, and a box side panel assembly 3 disposed between the box cover assembly 1 and the box back assembly 2. The box cover assembly 1, the box back assembly 2, and the box side panel assembly 3 are independent split structures that can be disassembled and stored and transported separately. When in use, they can be quickly spliced ​​and assembled into a complete and enclosed meter box, completely abandoning the traditional welded integrated fixed structure.

[0038] The cover assembly 1 includes a rectangular cover plate 11 and multiple hinged doors 12 mounted on the front of the cover plate 11. Each door 12 can be opened and closed independently for its corresponding internal functional area, facilitating future zonal maintenance and repair. A waterproof component is installed between the door 12 and the cover plate 11 to prevent rainwater from entering the meter box. The back panel assembly 2 includes a back panel 21 parallel to and directly opposite the cover plate 11. The back panel 21 serves as the mounting base for the entire box, used to secure it to the wall. The side panel assembly 3 includes an annular side panel 31. An annular mounting groove 4 is formed on the inner surface of the cover plate 11 and the back panel 21, near their edges. The four edges of the side panel 31 can be inserted into the mounting grooves 4 of the cover plate 11 and the back panel 21, enabling quick assembly and positioning of the three components. Assembly is convenient, requires no welding, and disassembly is straightforward.

[0039] Reference Figure 2 and Figure 3 The ring side panel 31 is formed by vertically symmetrical left side panel 311 and right side panel 312, and horizontally parallel upper side panel 313 and lower side panel 314, which are spliced ​​end to end to form a rectangular ring structure. Hinges 32 are installed at the joint positions of adjacent side panels, and the hinges 32 enable rotational connection, allowing the entire ring side panel 31 to be unfolded and folded for storage. In the warehousing and transportation process, the ring side panel 31 can be folded flat along the hinges 32 and stacked with the disassembled box lid assembly 1 and box back assembly 2 for storage, which greatly reduces the space occupied, improves the storage utilization rate and transportation loading rate, and reduces logistics and warehousing costs. On the construction site, the ring side panel 31 can be unfolded for quick docking and assembly, adapting to the needs of rapid construction.

[0040] To ensure the sealing and protection performance of the enclosure after assembly and to adapt to complex outdoor environments such as humidity and dust, an annular sealing strip 41 is embedded and fixed inside the annular mounting groove 4. The sealing strip 41 is made of elastic rubber material, which has good elastic compression and sealing effects for waterproofing and dustproofing. When the two edges of the annular side plate 31 are inserted into the mounting groove 4, the ends of the annular side plate 31 will be tightly pressed against the surface of the sealing strip 41, eliminating assembly gaps and effectively preventing rainwater, dust, and insects from entering the enclosure, protecting the stable operation of internal electrical components, and ensuring the enclosure's protection level.

[0041] Reference Figure 2 and Figure 3Multiple sets of positioning components 33 are evenly arranged on the inner side of the ring side plate 31. The number of positioning components 33 corresponds to the number of side plates. They are used to achieve precise positioning and support after the box cover assembly 1, box back assembly 2 and box side plate assembly 3 are assembled, and to prevent the box body from being deformed by pressure. Each set of positioning components 33 includes a positioning rod 331 that is vertically fixed to the inner side of the box cover plate 11 and a positioning cylinder 332 that is vertically fixed to the inner side of the box back plate 21. The positioning rod 331 and the positioning cylinder 332 are coaxially aligned and facing each other. During the assembly process, the operator can accurately insert the end of the positioning rod 331 into the positioning cylinder 332, so that the edge of the ring side plate 31 can be aligned and inserted into the mounting groove 4 of the box cover plate 11 and the box back plate 21. The positioning rod 331 and the positioning cylinder 332 can form an axial limiting support structure. Meanwhile, the inner wall of the ring side plate 31 overlaps with the outer end face of the positioning cylinder 332. Multiple sets of positioning cylinders 332 form multi-point support for the ring side plate 31, which greatly improves the structural strength of the overall box and replaces the support effect of the traditional welded structure, ensuring the collision resistance and pressure resistance performance of the modular box.

[0042] The enclosure structure also includes a fixing component 5 installed on the upper side plate 313 of the ring side plate 31, which is used to lock and fix each module after assembly, prevent the modules from loosening or shifting during use, and ensure the stability of the enclosure structure.

[0043] Reference Figure 3 and Figure 4 The fixing component 5 includes a sliding rod 51, a fixing block 52, a fixing ring 53, and a driving component 54. The sliding rod 51 is horizontally arranged along the width direction of the upper side plate 313 and can slide laterally along the length direction of the upper side plate 313. A pair of fixing blocks 52 are provided and fixed to the left and right ends of the sliding rod 51. Matching fixing rings 53 are fixed on the inner surfaces of the box cover plate 11 and the box back plate 21 at positions corresponding to the fixing blocks 52. The fixing rings 53 are annular sleeve structures that allow the fixing blocks 52 to slide and engage securely. The driving component 54 is the sliding power structure for the sliding rod 51, used to drive the sliding rod 51 to move laterally, completing the locking and unlocking actions.

[0044] To ensure the smoothness and accuracy of the sliding rod 51 during the sliding process, a pair of parallel guide rods 55 are fixedly installed on the upper side plate 313. The guide rods 55 are arranged along the length of the upper side plate 313. The two guide rods 55 pass through the body of the sliding rod 51 at the same time, so that the sliding rod 51 can achieve sliding engagement through the guide rods 55, effectively avoiding the sliding rod 51 from deviating or getting stuck, and ensuring smooth locking action.

[0045] The fixing block 52 adopts a right-angled trapezoidal cross-sectional structure. The inner surfaces of the two fixing blocks 52 facing each other are inclined surfaces. The side of the right-angled side of the fixing block 52 is fixedly connected to the end of the sliding rod 51. The cross-sectional area of ​​the fixing block 52 along the axial direction of the sliding rod 51 gradually decreases from the inside to the outside, so that the fixing block 52 forms a tip guide structure. During the locking process, the tip of the fixing block 52 can preferentially penetrate into the inside of the fixing ring 53. Through the guiding and adapting effect of the inclined surface, the assembly deviation is automatically corrected, realizing the precise insertion and engagement of the fixing block 52 and the fixing ring 53, and the locking accuracy is higher.

[0046] Reference Figure 3 , Figure 4 and Figure 5 The driving component 54 specifically includes a drive shaft 541, an eccentric wheel 542, and a drive rod 543. The upper side plate 313 has a vertically penetrating shaft hole, and the drive shaft 541 is rotatably mounted inside the shaft hole, allowing free circumferential rotation. The upper end of the drive shaft 541 extends to the outer side of the upper side plate 313, where the eccentric wheel 542 is fixedly mounted. The wheel surface of the eccentric wheel 542 rotatably abuts against the side of the sliding rod 51. The lower end of the drive shaft 541 passes through the upper side plate 313 and extends to the inner side of the upper side plate 313, and the lower end of the drive shaft 541 is fixedly connected to... The drive rod 543 is a manually operated end. The drive rod 543 can be manually rotated to drive the drive shaft 541 to rotate as a whole. The drive rod 543 is perpendicular to the drive shaft 541. The operator determines whether the eccentric wheel 542 is pressed against the sliding rod 51 by judging the rotation angle of the drive rod 543, and whether the fixing block 52 is fully inserted into the fixing ring 53 to achieve locking. In this embodiment, the locking of the fixing block 52 and the fixing ring 53 is determined by observing whether the drive rod 543 rotates 180°.

[0047] To limit the rotational stroke of the eccentric wheel 542 and prevent excessive rotation from causing structural damage, limiting plates 56 are fixedly provided on both the upper and lower surfaces of the sliding rod 51. The two limiting plates 56 are set on the upper and lower sides of the eccentric wheel 542. The limiting plates 56 are provided with elongated limiting holes 561 along the sliding direction of the sliding rod 51. The upper end of the drive shaft 541 slides and engages inside the limiting hole 561. By limiting the stroke of the limiting hole 561, the rotational range of the eccentric wheel 542 and the sliding distance of the sliding rod 51 are precisely controlled, ensuring that the locking force is moderate and the structure is stable.

[0048] Reference Figure 4 and Figure 5A fixing member 57 is fitted to the lower end of the drive shaft 541 to achieve self-locking after the drive rod 543 rotates, preventing the eccentric wheel 542 from springing back and loosening. The fixing member 57 includes a rectangular fixing rod 571 fixed to the lower end of the drive shaft 541. The fixing rod 571 is arranged along the length of the drive shaft 541. The rod body of the drive rod 543 has a rectangular through hole. The fixing rod 571 slides through the through hole to achieve a sliding fit between the drive rod 543 and the drive shaft 541. At the same time, a U-shaped fixing seat 572 is fixedly installed on the inner side of the upper side plate 313. The drive rod 543 can be locked into the U-shaped fixing seat 572 after rotating with the drive shaft 541 to achieve angle locking. A tension spring 573 is sleeved on the rod of the drive shaft 541. One end of the tension spring 573 is fixedly connected to the drive rod 543, and the other end is fixedly connected to the inner wall of the upper side plate 313. Through the elastic tension of the tension spring 573, a reset locking force is continuously provided to the drive rod 543 to ensure that the drive rod 543 is stably locked in the fixed seat 572 and to prevent the locking structure from loosening.

[0049] To further improve the overall locking uniformity of the box, multiple sliding rods 51 are evenly arranged along the length of the upper side panel 313. The multiple sliding rods 51 are fixedly connected to each other by connecting rods 58 to form an integrated linkage structure. Each sliding rod 51 is equipped with a fixing block 52 and a corresponding fixing ring 53 at both ends. The driving component 54 acts solely on the sliding rod 51 in the middle position, and drives all sliding rods 51 to slide synchronously through the connecting rod 58 to achieve multi-point synchronous locking, ensuring the tightness of the connection between the upper side panel 313 and the box cover and back.

[0050] Furthermore, multiple sets of fixing components 5 can be arranged and installed on the lower side plate 314, the left side plate 311, and the right side plate 312 respectively. The structure of the fixing components 5 at each position is completely identical. Through multi-point locking around the side plate 31, the lid, back of the box and the side plate 31 are fully secured, so that there is no loose gap after the entire modular box is assembled, and the structural strength is comparable to that of traditional welded boxes. Example

[0051] Based on Example 1, the enclosure structure is also equipped with a rainproof component 6 to enhance the enclosure's outdoor waterproof, rainproof, and water accumulation prevention capabilities, making it suitable for harsh outdoor installation scenarios such as open-air platforms and rooftops, and preventing rainwater from seeping into the enclosure and damaging electrical components.

[0052] Reference Figure 3 and Figure 6The rainproof component 6 includes an upper rainproof plate 61, a lower rainproof plate 62, a left rainproof plate 63, and a right rainproof plate 64, respectively arranged corresponding to the upper side plate 313, lower side plate 314, left side plate 311, and right side plate 312. All four rainproof plates adopt a U-shaped bending structure and cover the outer edge of the box cover plate 11 and the box back plate 21 at the corresponding side plate positions. Among them, the left rainproof plate 63 and the right rainproof plate 64 have the same structure and size and are arranged symmetrically from left to right. Multiple L-shaped hanging plates 65 are fixedly installed on the inner side wall of both. The hanging plates 65 are suspended from top to bottom and snapped onto the sliding rod 51 of the corresponding side plate, realizing quick suspension and installation of the rainproof plates. They are easy to install and remove without the need for additional drilling for fixing.

[0053] The upper rainproof plate 61 extends outward at both ends, beyond the upper surfaces of the left and right rainproof plates 64. The upper ends of the left and right rainproof plates 64 abut against the upper rainproof plate 61, completely covering the upper seam of the left and right rainproof plates 64, forming a fully covered rainproof structure at the top, preventing rainwater from seeping in. The lower rainproof plate 62 is snapped between the lower ends of the left and right rainproof plates 64, and is securely fastened to the lower ends of the box cover plate 11 and the box back plate 21, sealing the bottom gap. The lower ends of the left and right rainproof plates 64 extend downward to form a drip edge structure, which can quickly drain rainwater from the side walls and prevent rainwater from seeping in along the gaps in the box.

[0054] Reference Figure 3 , Figure 4 and Figure 6 To ensure the secure fixing of each rainproof panel, locking structures are provided on both the upper side plate 313 and the lower side plate 314 to lock the upper rainproof panel 61 and the lower rainproof panel 62. The locking structure includes locking components 66 on the upper side plate 313 near its left and right ends. The locking components 66 at both ends of the upper side plate 313 have the same structure as the fixing component 5. A locking ring 661 is fixed on the inner side of the upper rainproof panel 61 at the position corresponding to the locking component 66. A locking block 662 is fixed on the sliding rod 51 of the locking component 66. The sliding rods 51 of the two locking components 66 at both ends can slide synchronously in opposite directions, causing the locking block 662 to be inserted laterally into the locking ring 661, thereby achieving precise locking and fixing of the upper rainproof panel 61 and preventing the rainproof panel from falling off or shifting. Meanwhile, a pair of positioning plates 611 are fixed on the inner side of the upper rainproof plate 61. The two positioning plates 611 are respectively snapped onto the outer side walls of the left rainproof plate 63 and the right rainproof plate 64. The positioning plates 611 achieve mutual positioning of the four rainproof plates, forming an integral rainproof enclosure structure. There is no misalignment or gap between the rainproof plates, and the rainproof sealing performance is greatly improved. Example

[0055] Based on the above embodiments, this embodiment adds a heat dissipation component 7 and an internal partition structure to balance the heat dissipation performance of the enclosure with the neatness of the wiring, avoid heat accumulation inside the enclosure that could lead to component aging and failure, and at the same time achieve functional partitioning standardization.

[0056] Reference Figure 3 and Figure 4 The heat dissipation assembly 7 includes multiple sets of heat dissipation holes 71 and heat dissipation fans 72. Heat dissipation holes 71 are evenly distributed on the lower rainproof plate 62, lower side plate 314, and upper side plate 313 to ensure basic ventilation and heat dissipation. Heat dissipation fans 72 are embedded and fixed inside the heat dissipation holes 71 of the upper side plate 313 and lower side plate 314, forming an active heat dissipation structure. The heat dissipation fans 72 of the lower side plate 314 can blow air inwards, and the heat dissipation fans 72 of the upper side plate 313 can blow air outwards, creating air convection and accelerating heat dissipation. Simultaneously, through-flow heat dissipation gaps are reserved between the upper rainproof plate 61, left rainproof plate 63, right rainproof plate 64, and the corresponding side plates. External cold air can enter the enclosure through the bottom heat dissipation holes 71, while hot air is exhausted through the top heat dissipation gaps and heat dissipation holes 71, forming a circulating convection airflow. The combination of active heat dissipation and natural convection heat dissipation significantly improves the enclosure's heat dissipation efficiency, effectively reducing the internal temperature of the enclosure under high-temperature environments and ensuring the stable operation of power components. Meanwhile, the rainproof design prevents rainwater and dust from entering the enclosure through the ventilation holes 71, achieving a balance between heat dissipation and protection.

[0057] Multiple partition plates 34 are detachably installed on the inner side of the ring side panel 31. These partition plates 34 divide the internal space of the enclosure into several independent and enclosed working areas, namely the main switch area, branch switch area, and meter area, enabling the zoned layout of power components and avoiding cross-interference of lines and faults. The two ends of the partition plates 34 slide against the inner walls of the oppositely arranged side panels, and the spacing between them can be flexibly adjusted according to the actual number of meters and equipment size, adapting to different power distribution renovation scenarios, improving the versatility of the enclosure, and eliminating the need for customized enclosures. The number of enclosure doors 12 corresponds one-to-one with the independent working areas, allowing individual enclosure doors 12 to be opened for inspection and operation without the need to open the entire enclosure, making operation and maintenance convenient.

[0058] Meanwhile, the lower side plate 314, the lower rainproof plate 62, and each partition plate 34 are provided with regular wire holes 8. The wire holes 8 are equipped with protective rubber rings, which can allow strong and weak power cables to pass through in different categories, realize the neat arrangement of cables, avoid bending and wear of cables, and at the same time ensure the sealing of the wire hole to prevent dust and rainwater from seeping in. Example

[0059] Reference Figure 1 and Figure 7 In this embodiment, the wall installation structure of the box is refined and optimized. Multiple sets of installation parts 9 are assembled on the outer side of the box back plate 21 to achieve stable installation of the box and the wall, which is suitable for complex installation scenarios such as high altitude, narrow space, and renovation of old communities, and reduces construction difficulty.

[0060] Each set of mounting components 9 includes multiple mounting blocks 91 fixed to the outside of the back panel 21 and multiple mounting rods 92 passing through the mounting blocks 91. The mounting blocks 91 are evenly arranged horizontally, and each mounting rod 92 is vertically positioned. Multiple mounting blocks 91 are arranged along the length of the mounting rod 92, and the mounting rod 92 passes through multiple mounting blocks 91 on the mounting rod 92. The end of the mounting rod 92 is bent into a U-shape, which can be locked and limited on the outside of the mounting block 91 to prevent the mounting rod 92 from slipping off. Multiple sets of mounting components 9 are symmetrically arranged at the top and bottom of the back panel 21, and the mounting rods 92 of the upper and lower sets of mounting components 9 extend in opposite directions vertically, forming a two-way tie-and-fix structure, which greatly improves the installation stability and prevents the box from tilting or falling off. At the same time, the two adjacent sets of mounting components 9 are staggered in the horizontal direction to distribute the installation stress points and avoid excessive local stress on the wall, which may lead to loosening or falling off. In addition, it facilitates the quick insertion of the mounting rods 92 into the corresponding multiple mounting blocks 91 during installation.

[0061] The end of the mounting rod 92 away from the mounting block 91 has a fixing screw hole, which can be directly fastened to the wall base by fixing bolts. The installation operation is simple and a single person can complete the alignment and fixing work without the need for multiple people to cooperate in hoisting. This greatly reduces the construction labor cost and operation difficulty, and is suitable for special construction scenarios such as narrow spaces in old communities and high-altitude operations, effectively improving construction efficiency.

[0062] This application adopts a fully modular split design. After production, the lid assembly 1, back assembly 2, and folded side panel 31 can be disassembled and stacked separately, greatly reducing the space occupied in storage and transportation, improving storage utilization and transportation loading rate, reducing enterprise operating costs, and avoiding damage such as bumps, deformation, and paint chipping during the transportation of the entire box, thus reducing product loss. During construction, the folded side panel 31 is unfolded and quickly connected to the lid panel 11 and back panel 21 through the edge insertion structure. Precise positioning is achieved using the positioning component 33, and then all-round locking and fixing is achieved through multiple sets of fixing components 5, making assembly quick and efficient.

[0063] Meanwhile, this application ensures the waterproof and dustproof performance of the box through a sealed structure and a split rainproof structure, achieves efficient heat dissipation through a convection heat dissipation component 7, realizes functional zoning through an internal partition structure, and achieves stable installation through a staggered bidirectional mounting component 9. The overall structure has strong versatility, flexible assembly, and convenient operation and maintenance, and can be adapted to the power distribution needs of different number of meters and different scenarios. It completely solves the technical pain points of traditional welded integrated meter boxes, such as non-separability, inconvenient transportation and construction, poor versatility, and high operation and maintenance difficulty. It is suitable for the current use needs of power engineering for mass production, centralized transportation, flexible installation, and efficient operation and maintenance.

[0064] The above are all preferred embodiments of this application, and are not intended to limit the scope of protection of this application. Therefore, all equivalent changes made in accordance with the structure, shape and principle of this application should be covered within the scope of protection of this application.

Claims

1. A modular meter box, characterized in that: The enclosure includes a box structure comprising a box cover assembly (1), a box back assembly (2), and a box side panel assembly (3) disposed between the two. The three are independent structures and can be assembled into a complete meter box. The box cover assembly (1) includes a box cover plate (11) and multiple box doors (12) hinged to the box cover plate (11). The box back assembly (2) includes a box back plate (21) parallel to the box cover plate (11). The box side panel assembly (3) includes an annular side plate (31). An annular mounting groove (4) is provided on the opposing surfaces of the box cover plate (11) and the box back plate (21) near their perimeter edges. The two sides of the annular side plate (31) can be inserted and fixed into the corresponding mounting groove (4).

2. A modular meter box according to claim 1, characterized in that: The ring side plate (31) includes a left side plate (311) and a right side plate (312) arranged vertically symmetrically, and an upper side plate (313) and a lower side plate (314) arranged vertically parallel to each other. The left side plate (311), right side plate (312), upper side plate (313) and lower side plate (314) are connected end to end, and adjacent side plates are connected by a hinge (32) so that the ring side plate (31) can be unfolded and folded.

3. A modular meter box according to claim 2, characterized in that: Multiple sets of positioning components (33) are provided on the inner side of the ring side plate (31). The multiple sets of positioning components (33) are provided for each side plate. The positioning component (33) includes a positioning rod (331) fixed on the box cover plate (11) and a positioning cylinder (332) fixed on the box back plate (21). The positioning rod (331) can be inserted into the positioning cylinder (332). The inner side of the ring side plate (31) can be attached to the corresponding positioning cylinder (332).

4. A modular meter box according to claim 1, characterized in that: The box structure also includes a fixing component (5) set on the upper side plate (313), which includes a sliding rod (51) slidably set on the upper side plate (313), a fixing block (52) fixed at both ends of the sliding rod (51), a fixing ring (53) set at both ends of the sliding rod (51) and fixed on the box cover plate (11) and the box back plate (21), and a driving component (54) for driving the sliding rod (51) to slide. The sliding rod (51) is set along the width direction of the upper side plate (313), and the fixing block (52) is inserted into the fixing ring (53).

5. A modular meter box according to claim 4, characterized in that: A pair of parallel guide rods (55) are fixed on the upper side plate (313). The guide rods (55) are arranged along the length direction of the upper side plate (313), and the two guide rods (55) pass through the sliding rod (51). The sliding rod (51) is slidably engaged with the guide rods (55).

6. A modular meter box according to claim 4, characterized in that: The opposing surfaces of the two fixing blocks (52) are set as inclined surfaces, and the cross-section of the fixing block (52) is a right trapezoid. The side of the right-angled side of the right trapezoid in the cross-section of the fixing block (52) is fixed to the sliding rod (51). The cross-sectional area of ​​the fixing block (52) in the direction parallel to the sliding rod (51) gradually decreases from the sliding rod (51). The tip of the fixing block (52) can pass through the fixing ring (53) first.

7. A modular meter box according to claim 4, characterized in that: The drive unit (54) includes a drive shaft (541) that passes through the upper side plate (313) and is rotatably disposed, an eccentric wheel (542) fixed to the upper end of the drive shaft (541) and located on the outside, and a drive rod (543) fixed to the lower end of the drive shaft (541). The eccentric wheel (542) can rotate and abut against the sliding rod (51).

8. A modular meter box according to claim 4, characterized in that: A limiting plate (56) is fixed on the sliding rod (51), and a limiting hole (561) is provided on the limiting plate (56) along the sliding direction of the sliding rod (51). The upper end of the drive shaft (541) is slidably fitted in the limiting hole (561).

9. A modular meter box according to claim 7, characterized in that: The lower end of the drive shaft (541) is provided with a fixing member (57), which includes a fixing rod (571) fixed to the lower end of the drive shaft (541) and arranged along its length. The cross-section of the fixing rod (571) is rectangular. The fixing rod (571) passes through the drive rod (543) and the two are slidably engaged. A U-shaped fixing seat (572) is fixed on the upper side plate (313). The drive rod (543) can be rotatably engaged with the fixing seat (572). A tension spring (573) is sleeved on the drive shaft (541), one end of which is fixed to the drive rod (543) and the other end is fixed to the upper side plate (313).

10. A modular meter box according to claim 4, characterized in that: Multiple sliding rods (51) are evenly arranged along the length of the upper side plate (313). The multiple sliding rods (51) are connected into a whole by connecting rods (58). Corresponding fixing blocks (52) are provided at both ends of the sliding rods (51), and corresponding fixing rings (53) are provided on the box cover plate (11) and the box back plate (21). The driving member (54) acts on the sliding rod (51) located in the middle position of the multiple sliding rods (51).

Images