An electric energy metering box facilitating later operation and maintenance

Abstract

The application relates to an electric energy metering box convenient for later operation and maintenance, and relates to the technical field of smart power grids, which comprises a box body, two box doors rotatably assembled on the front side of the box body, a supporting plate rotatably installed on the inner side surface of the box door, the supporting plate being capable of being turned to a horizontal supporting state and a vertically downward storage state, a protection plate vertically upwardly fixed on the supporting plate, a positioning groove being formed in the top surface of the protection plate, two plugging plates rotatably installed on the inner side surface of the box door, the plugging plates being capable of being turned to a vertically upward plugging state and a vertically downward limiting state, a cover plate being detachably installed on the top surfaces of the two plugging plates in the plugging state in a direction of approaching each other, and a positioning block being fixed on the bottom surface of the cover plate. In the application, when the equipment is normally applied, the electrical drawing can be regularly stored; when the equipment is used for later operation and maintenance, the top surface of the protection plate is exposed and used for specially containing operation and maintenance tools and maintenance garbage.

Description

Technical Field

[0001] This application relates to the technical field of smart grids, and in particular to an energy metering box that facilitates later operation and maintenance. Background Technology

[0002] Smart grids are the core infrastructure supporting the digitalization and refined management of power. As a key supporting device at the end of the power grid, electricity metering boxes undertake core functions such as power data collection, line connection, and metering protection, and are widely used in various power consumption scenarios such as residential communities, industrial and commercial plants, and public distribution points. Wall-mounted structures have become the most common type of metering box due to their advantages such as convenient installation, small footprint, and compatibility with standardized wall construction. In daily power operation and maintenance, periodic inspections, and emergency repairs, staff frequently need to open the boxes to check wiring diagrams and test internal metering and protection components. The box's heat dissipation, wiring, diagram storage structure, and operational adaptability directly affect maintenance efficiency and on-site cleanliness. Therefore, optimizing the structure of wall-mounted electricity metering boxes to address practical pain points in on-site operation and maintenance has significant engineering application value.

[0003] In related technologies, a wall-mounted electricity metering box includes a box body, electrical components housed inside the box body, and a rotating door mounted on the front side of the box body. Multiple ventilation openings are provided on both the left and right outer walls of the box body, and a dedicated wiring port is reserved on the bottom surface of the box body. The standard wall-mounted installation process is as follows: the back of the box body is secured to the wall using bolts; the height of the box body is adjusted so that the bottom of the box meets industry installation standards; external incoming cables are uniformly threaded through the wiring port at the bottom of the box body to complete the corresponding wiring work with each electrical component. Simultaneously, a downward-facing storage box is installed inside the box door. This storage box is specifically used to store electrical diagrams. During later operation and maintenance, and troubleshooting, staff can retrieve the diagrams from the storage box to verify the internal wiring and component wiring logic, providing a diagrammatic reference for fault diagnosis and circuit verification.

[0004] In the aforementioned technologies, maintenance personnel must use folding ladders to climb to the front of the enclosure to open the door and access the drawings. While working at height, they must carry various maintenance tools, and there are no temporary storage locations, making tool retrieval, placement, and switching operations extremely inconvenient. During maintenance, various debris such as insulation scraps, discarded cable ties, and aging cable sheaths are generated. The enclosure lacks a temporary storage structure, forcing workers to simply discard the debris on the ground. This not only increases on-site safety hazards but also requires additional time to clean up debris after maintenance, lengthening overall maintenance time and reducing the efficiency of inspection and emergency repairs, indicating room for improvement. Summary of the Invention

[0005] The purpose of this application is to provide an energy metering box that facilitates later operation and maintenance, solving the problems in the above-mentioned related technologies such as inconvenience in accessing and placing maintenance tools at height, lack of a storage structure for miscellaneous items, easy to cause on-site mess, increase cleaning time, and significantly reduce the efficiency of maintenance work.

[0006] The energy metering box provided in this application, which facilitates later operation and maintenance, adopts the following technical solution: An energy metering box for easy maintenance includes a box body, electrical components inside the box body, and two doors rotatably mounted on the front of the box body. The box body has ventilation openings on its left and right sides and a wiring port on its bottom. When both doors are closed, the sides furthest from each other form the sealed surface. A support plate with a rotating surface parallel to the sealed surface is rotatably mounted on the inner side of the doors. The support plate can rotate to a horizontal support state and a vertically downward retracted state. When the support plate is in the support state, a vertically upward protective plate is fixed on the side furthest from the doors, and the top surface of the protective plate has a positioning groove. Two elastically shortenable supports are rotatably mounted on the inner side of the doors, located on opposite vertical sides of the support plate. The sealing plate has a rotating surface parallel to the inner side of the enclosure door. It can rotate to a vertically upward sealing state and a vertically downward limited state. When both sealing plates are in the sealing state, a cover plate is detachably installed on its top surface along the direction of mutual approach. A positioning block is fixed to the bottom surface of the cover plate at this time. The inner side of the enclosure door, the support plate in the supported state, the two sealing plates in the sealed state, and the protective plate together form a storage cavity for storing electrical drawings. The sides of the two sealing plates that are close to each other abut against the two vertical sides of the protective plate, and the positioning block is elastically engaged in the positioning groove. The top surface of the protective plate, when the support plate is in the stored state and the sealing plates are in the limited state, is used to hold maintenance tools and repair waste.

[0007] By adopting the above technical solution, when the equipment is in normal use, a dedicated storage cavity can be stably formed by the inner side of the box door, the support plate in a supported state, the two sealing plates in a sealed state, and the protective plate. This cavity can neatly store electrical drawings, ensuring the cleanliness and standardization of the electrical drawings and facilitating easy access and verification of the wiring structure by maintenance personnel. When the equipment is undergoing later maintenance or repair work, the support plate can be switched to the storage state and the two sealing plates can be switched to the limit state, exposing the top surface of the protective plate for dedicated storage of maintenance tools and repair waste. This provides a dedicated temporary tool placement point and waste collection point for high-altitude maintenance operations, solving the shortcomings of traditional metering box maintenance which lacks tool placement and waste collection structures. It effectively avoids safety hazards caused by repair waste falling to the ground, reduces subsequent site cleaning time, and significantly improves the overall work efficiency of later maintenance and repair of the electricity metering box.

[0008] Optionally, the positioning block has a first inclined surface at the outer edge of its side away from the cover plate.

[0009] By adopting the above technical solution, the first inclined surface can play a precise guiding role in the process of the positioning block elastically snapping into the positioning groove on the top surface of the protective plate, which can effectively reduce the assembly difficulty of the positioning block and the positioning groove being aligned and engaged, and avoid the situation of offset or jamming during the alignment of the positioning block.

[0010] Optionally, when the support plate is in the supported state, a connecting plate is rotatably installed on the side of the protective plate away from the door, and the rotating surface of the connecting plate is parallel to that of the support plate; two intermediate rods are rotatably installed side by side on the edge of the connecting plate away from the protective plate, and the rotating surface of the intermediate rods is parallel to the inner side of the door when the support plate is in the supported state, and a fixing rod is vertically fixed at the other end of the intermediate rods; an arc-shaped protrusion is fixed on the side of the two fixing rods that are close to each other, and the outer surface of the arc-shaped protrusion is an arc surface with a minor arc length, and the two sealing plates are mutually... An arc-shaped groove is provided on the side away from the main body; when the supporting plate is in the supporting state and the sealing plate is in the sealing state, the connecting plate rotates to a vertically upward state, and the two intermediate rods rotate to a coaxial state with their opposite sides. The sides of the two fixed rods that are close to each other abut against the sides of the two sealing plates that are far from each other, and the arc-shaped protrusion is inserted into the arc-shaped groove. When the supporting plate is in the retracted state and the sealing plate is in the limiting state, the connecting plate rotates to a vertically downward state, and the two intermediate rods rotate to a vertically downward side-by-side state. The fixed rods can be used to hang maintenance tools or garbage bags.

[0011] By adopting the above technical solution, during normal use of the metering box, the vertically upward-facing connecting plate and the two coaxial intermediate rods allow the fixing rod to fit against the side of the sealing plate, ensuring the arc-shaped protrusion is stably engaged in the arc-shaped groove. This provides mechanical restraint and reinforcement to the two sealing plates in the sealing state, preventing them from loosening or shifting and ensuring the structural stability of the storage cavity. During operation and maintenance of the metering box, the vertically downward-facing connecting plate and the two parallel intermediate rods can expose the fixing rod, providing dedicated support points for hanging maintenance tools and garbage bags, further enriching the metering box's operation and maintenance adaptability and improving the convenience of maintenance operations.

[0012] Optionally, a locking block is fixed on the outer periphery of the end of the fixing rod away from the intermediate rod. The cover plate is rotatably connected to the sealing plate. The rotating surface of the cover plate is parallel to the side of the sealing plate. A locking hole is opened on the cover plate. When the support plate is in the storage state and the sealing plate is in the limiting state, the two cover plates rotate towards each other to the receiving state located below the support plate. At this time, the connecting plate and the two intermediate rods are in a vertical downward state, and the locking block is inserted into the locking hole.

[0013] By adopting the above technical solution, when the support plate is in the retracted state, the sealing plate is in the limited state, and the two cover plates are rotated to the position below the support plate for support, the locking block can be inserted into the locking hole, which can accurately limit and fix the connecting plate and the two intermediate rods in the vertically downward state at this time. This structure can effectively limit the rotation, swaying and displacement of the connecting plate and intermediate rods during operation, greatly improve the overall stability of maintenance tools and garbage bags hanging on the fixed rod, prevent suspended objects from falling, eliminate the safety hazard of falling objects from heights, and ensure the safe and orderly operation of the power metering box maintenance and repair work.

[0014] Optionally, the locking block has a second inclined surface at the outer edge of its side away from the fixing rod.

[0015] By adopting the above technical solution, the second inclined surface can play a guiding and adapting role in the assembly process of the locking block being inserted into the locking hole of the cover plate. It can effectively eliminate the size deviation and position deviation when the locking block and the locking hole are aligned, reduce the difficulty of the locking block insertion and assembly operation, and avoid jamming and misalignment during the insertion process.

[0016] Optionally, a traction block located on one side of the locking block is slidably provided on the side of the fixing rod away from the intermediate rod. The traction block can be adjusted and fixed by sliding back and forth along the length direction of the fixing rod. A gripping rod is vertically fixed on the side of the traction block away from the fixing rod. When the arc-shaped protrusion is inserted into the arc-shaped groove, the traction block can slide to the gripping state in the direction away from the locking block. The outer peripheral surface of the end of the gripping rod away from the traction block abuts against the side of the locking block away from the fixing rod. When the locking block is inserted into the locking hole, the traction block can slide to the locked state abutting against the outer side of the cover plate. At this time, the top surface of the gripping rod abuts against the bottom surface of the cover plate.

[0017] By adopting the above technical solution, when the metering box is in normal use, the traction block, when slid into the gripping state, allows the gripping rod to abut against the locking block, facilitating the operator's gripping and force application, and driving the overall rotation and adjustment of the fixed structure. During the operation and maintenance of the metering box, the traction block, when slid into the locking state, allows the gripping rod to abut against the bottom surface of the cover plate, limiting and fixing the cover plate in the receiving state, preventing the cover plate from shifting or loosening. At the same time, the top surface of the cover plate forms an additional temporary storage platform, which can be used to temporarily place maintenance parts and small tools, further optimizing the operation and maintenance conditions.

[0018] Optionally, a third inclined surface is provided at the outer edge of the end of the gripping rod away from the traction block.

[0019] By adopting the above technical solution, the third inclined surface can play a role in transition guidance and anti-slip adaptation during the sliding adjustment of the traction block and the operation of the staff holding the grip rod.

[0020] Optionally, a fourth arc surface is provided at the outer periphery of the grip rod.

[0021] By adopting the above technical solution, the fourth arc surface can optimize the overall outer periphery of the grip rod by creating a rounded transition, eliminating sharp edges and protruding structures on the outer periphery of the grip rod. During the process of adjusting the fixed structure while holding the grip rod, the fourth arc surface can conform to the curvature of the hand, significantly improving grip comfort and force application stability.

[0022] Optionally, a dovetail slider is fixed on the traction block, and a dovetail groove is provided on the fixing rod to slide with the dovetail slider; an arc-shaped locking block is provided on the dovetail slider, the arc-shaped locking block is an arc surface with a minor arc length on its outer side, and a number of locking grooves for the arc-shaped locking block to be inserted are provided on the bottom wall of the dovetail groove.

[0023] By adopting the above technical solution, the sliding fit structure of the dovetail slider and the dovetail groove can ensure the accuracy and stability of the sliding adjustment of the traction block along the length of the fixed rod, avoiding problems such as displacement, jamming, and detachment during the sliding process of the traction block. The arc-shaped locking block set on the dovetail slider cooperates with several locking grooves on the bottom wall of the dovetail groove, which can achieve precise locking and positioning of the arc-shaped locking block when the traction block is switched to the gripping state and the locked state, and complete the self-locking fixation after the traction block slides.

[0024] Optionally, the protective plate has a storage groove on its top surface when the support plate is in the storage state.

[0025] By adopting the above technical solution, the storage trough can form a dedicated embedded storage space for the later operation and maintenance of the electricity metering box. Compared with the planar storage structure, the storage trough has a blocking and limiting effect. The storage trough can stably hold various operation and maintenance tools and maintenance waste, effectively preventing tools and waste from slipping and falling.

[0026] In summary, this application includes the following beneficial technical effects: In this application, when the equipment is in normal use, a dedicated storage cavity can be stably formed by the inner side of the cabinet door, the support plate in a supported state, the two sealing plates in a sealed state, and the protective plate. This cavity can neatly store electrical drawings, ensuring the cleanliness and standardization of the stored electrical drawings, and facilitating maintenance personnel to easily access and verify the wiring structure. When the equipment is undergoing later maintenance or repair work, the support plate can be switched to the storage state and the two sealing plates can be switched to the limit state, exposing the top surface of the protective plate for dedicated storage of maintenance tools and repair waste, providing a dedicated temporary tool placement point and waste collection point for high-altitude maintenance operations. Attached Figure Description

[0027] Figure 1 This is a schematic diagram of the overall structure of an embodiment of this application; Figure 2 This is a schematic diagram illustrating the installation and assembly of the support components in an embodiment of this application; Figure 3 This is a cross-sectional structural diagram illustrating the installation and assembly of the support components in an embodiment of this application; Figure 4 This is a partial cross-sectional view of an embodiment of the present application illustrating the installation and fit of the sealing plate and the cover plate; Figure 5 yes Figure 4 An enlarged schematic diagram of part A in the middle; Figure 6 This is a partial structural diagram illustrating the installation and cooperation of the support plate and the protective plate in an embodiment of this application; Figure 7 This is an exploded structural diagram illustrating the installation and distribution of the sealing plate and the protective plate in an embodiment of this application; Figure 8 This is a partial cross-sectional structural diagram illustrating the installation and mating of the fasteners in an embodiment of this application; Figure 9 This is a partial cross-sectional view of an embodiment of the present application illustrating the installation and cooperation of the cover plate and the locking block; Figure 10 This is an exploded structural diagram illustrating the installation distribution of the fixing rod and the gripping rod in an embodiment of this application; Figure 11 This is a partial cross-sectional view of the structure of the grip rod installation and mating according to an embodiment of this application; Figure 12 This is a partial cross-sectional structural diagram illustrating the installation and fit of the dovetail slider in an embodiment of this application.

[0028] In the diagram, 1. Box body; 11. Heat dissipation vent; 12. Wiring port; 2. Box door; 21. Sealing surface; 3. Support assembly; 31. Support plate; 32. Protective plate; 321. Positioning groove; 322. Storage groove; 33. Sealing plate; 331. Arc-shaped groove; 34. Cover plate; 341. Locking hole; 35. Positioning block; 351. First inclined surface; 4. Fixing component; 41. Connecting plate; 42. Intermediate rod; 43. Fixing rod; 431. Arc-shaped protrusion; 432. Dovetail slide; 433. Snap-fit ​​groove; 44. Locking block; 441. Second inclined surface; 5. Grip component; 51. Traction block; 52. Grip rod; 521. Third inclined surface; 522. Fourth arc surface; 53. Dovetail slider; 531. Arc-shaped locking block. Detailed Implementation

[0029] The present application will be further described in detail below with reference to all the accompanying drawings.

[0030] Example: Reference Figure 1 , Figure 2 , Figure 3 and Figure 4An energy metering box for easy maintenance includes a box body 1, electrical components (not shown in the figure, such as electricity meters, circuit breakers, etc.) installed inside the box body 1, and two doors 2 rotatably mounted on the front side of the box body 1. Ventilation vents 11 are provided on the left and right sides of the box body 1, and wiring ports 12 are provided on the bottom surface. When both doors 2 are closed, the sides furthest from each other form a closed surface 21. A support assembly 3 is rotatably mounted on the inner side of the doors 2. The support assembly 3 includes a support plate 31 rotatably mounted on the inner side of the doors 2, with the rotating surface parallel to the closed surface 21. The support plate 31 can be rotated to a horizontal support state and a vertically downward retracted state. When the support plate 31 is in the support state, a vertically upward protective plate 32 is fixed on the side of the support plate 31 furthest from the doors 2. Two sealing plates 33 with elastic shortening properties are rotatably installed on the inner side of the door 2, located on opposite vertical sides of the support plate 31. The rotating surface of the sealing plate 33 is parallel to the inner side of the door 2. The sealing plate 33 can be rotated to a vertically upward sealing state and a vertically downward limited state. The sealing plate 33 is a conventional telescopic structure with an internal spring, which will not be described in detail here. When the two sealing plates 33 are in the sealing state, a cover plate 34 is detachably installed on the top surface of the two sealing plates 33 along the direction of mutual approach. When the metering box is in normal use, the inner side of the box door 2, the support plate 31 in a supported state, the two sealing plates 33 in a sealed state, and the protective plate 32 together form a storage cavity for storing electrical drawings. At this time, the sides of the two sealing plates 33 that are close to each other abut against the two vertical sides of the protective plate 32, and the bottom surface of the cover plate 34 is elastically pressed against the top surface of the protective plate 32. During the later operation and maintenance (repair) of the metering box, the support plate 31 is in the storage state, the sealing plates 33 are in the limiting state, and the top surface of the protective plate 32 is used to hold operation and maintenance tools and repair waste.

[0031] Reference Figure 4 , Figure 5 and Figure 6 The protective plate 32 has a positioning groove 321 on its top surface when the support plate 31 is in the supported state; the protective plate 32 has a receiving groove 322 on its top surface when the support plate 31 is in the stored state; the cover plate 34 has a positioning block 35 fixed on its bottom surface when the two sealing plates 33 are in the sealed state, and the positioning block 35 has a first inclined surface 351 on its outer edge away from the side of the cover plate 34. When the metering box is in normal use, the positioning block 35 on the cover plate 34 is elastically engaged in the positioning groove 321; during the later operation and maintenance (repair) of the metering box, the storage trough 322 on the protective plate 32 is used to hold operation and maintenance tools and repair waste.

[0032] Reference Figure 6 , Figure 7 and Figure 8When the support plate 31 is in the supported state, the protective plate 32 is provided with a fixing member 4 on the side away from the box door 2. The fixing member 4 includes a connecting plate 41 rotatably mounted on the protective plate 32. The connecting plate 41 is parallel to the rotation surface of the support plate 31. Two intermediate rods 42 are rotatably mounted side by side on the side edge of the connecting plate 41 away from the protective plate 32. When the support plate 31 is in the supported state, the rotation surface of the intermediate rods 42 is parallel to the inner side of the box door 2. The other end of the intermediate rods 42 is vertically fixed with a fixing rod 43. Arc-shaped protrusions 431 are fixed on the sides of the two fixed rods 43 that are close to each other. The outer side of the arc-shaped protrusions 431 is an arc surface with a minor arc length. Arc-shaped grooves 331 are opened on the sides of the two sealing plates 33 that are far apart from each other when the two sealing plates 33 are in the sealing state. When the support plate 31 is in the storage state and the sealing plate 33 is in the limit state (that is, when the metering box is under maintenance or repair), the connecting plate 41 is rotated to the vertical downward state, and the two intermediate rods 42 are rotated to the vertical downward side-by-side state. The fixed rods 43 can be used to hang maintenance tools or garbage bags at this time. When the support plate 31 is in the supporting state and the sealing plate 33 is in the sealing state (that is, when the metering box is in normal use), the connecting plate 41 rotates to the vertical upward state, and the two intermediate rods 42 rotate to the coaxial state in opposite directions. The sides of the two fixing rods 43 that are close to each other abut against the sides of the two sealing plates 33 that are far apart from each other. The arc-shaped protrusion 431 is then inserted into the arc-shaped groove 331, thereby using the fixing rods 43 to further limit and fix the two sealing plates 33 in this state. Reference Figure 7 , Figure 9 and Figure 10 A locking block 44 is fixed on the outer periphery of the end of the fixing rod 43 away from the middle rod 42. A second inclined surface 441 is provided on the outer edge of the side of the locking block 44 away from the fixing rod 43. The cover plate 34 is rotatably connected to the sealing plate 33. The rotating surface of the cover plate 34 is parallel to the side of the sealing plate 33. A locking hole 341 is provided on the cover plate 34. When the support plate 31 is in the retracted state and the sealing plate 33 is in the limited position state (that is, when the metering box is under maintenance or repair), the two cover plates 34 rotate towards each other to the receiving state below the support plate 31. The connecting plate 41 and the two intermediate rods 42 are in the vertical downward state at this time. The locking block 44 is inserted into the locking hole 341 to limit and fix the connecting plate 41 and the intermediate rods 42 in this state, thereby improving the stability of maintenance tools or garbage bags hanging on the fixed rods 43.

[0033] Reference Figure 10 , Figure 11 and Figure 12A gripping member 5 is provided on the side of the fixed rod 43 away from the intermediate rod 42. The gripping member 5 includes a traction block 51 that is slidably mounted on the fixed rod 43 and located on one side of the locking block 44. The traction block 51 can be adjusted and fixed by sliding back and forth along the length direction of the fixed rod 43. A gripping rod 52 is vertically fixed on the side of the traction block 51 away from the fixed rod 43. A third inclined surface 521 is provided at the outer edge of the end of the gripping rod 52 away from the traction block 51, and a fourth arc surface 522 is provided at the outer periphery of the gripping rod 52. When the arc-shaped protrusion 431 is inserted into the arc-shaped groove 331 (that is, when the metering box is in normal use), the traction block 51 can slide to the gripping state in the direction away from the locking block 44. The outer peripheral surface of the gripping rod 52 away from the traction block 51 abuts against the side of the locking block 44 away from the fixing rod 43. During this process, the user can use the gripping rod 52 to hold it, thereby better driving the fixing rod 43 to rotate and adjust. When the locking block 44 is inserted into the locking hole 341 (that is, during the later maintenance or repair of the metering box), the traction block 51 can slide to the locked state where it abuts against the outer side of the cover plate 34. At this time, the top surface of the gripping rod 52 abuts against the bottom surface of the cover plate 34, thereby further limiting and fixing the cover plate 34 in this state, preventing the cover plate 34 from moving down and loosening. Tools or parts required for maintenance can be temporarily placed on the top surface of the cover plate 34 in this state.

[0034] Reference Figure 11 and Figure 12 A dovetail slider 53 is fixed on the traction block 51, and a dovetail groove 432 is provided on the fixing rod 43 to slide with the dovetail slider 53. An arc-shaped locking block 531 is provided on the dovetail slider 53. The arc-shaped locking block 531 is an arc surface with a minor arc length on its outer side. Two locking grooves 433 are provided on the bottom wall of the dovetail groove 432 for the arc-shaped locking block 531 to be inserted into. When the traction block 51 is in the gripping state, the arc-shaped locking block 531 is inserted into one of the locking grooves 433, and when the traction block 51 is in the locked state, it is inserted into the other locking groove 433.

[0035] The implementation principle of this application embodiment is as follows: In normal operation, the support plate 31 rotates to the support position, and the two sealing plates 33 rotate to the sealing position. The inner side of the door 2, the support plate 31, the two sealing plates 33, and the protective plate 32 together form an electrical drawing storage cavity. The inner sides of the two sealing plates 33 abut against the two sides of the protective plate 32, and the positioning block 35 on the bottom surface of the cover plate 34 elastically engages with the positioning groove 321 on the top surface of the protective plate 32, completing the sealing and fixing of the storage cavity. At this time, the connecting plate 41 rotates to the vertical upward position, the two intermediate rods 42 are in a coaxial position, and the arc-shaped protrusion 431 on the fixing rod 43 engages with the arc-shaped groove 331. The traction block 51 slides along the fixing rod 43 to the gripping position, and the arc-shaped locking block 531 engages with the corresponding locking groove 433 for fixing, which can assist in adjusting the fixing structure.

[0036] In the later maintenance and repair phase, the support plate 31 rotates to the storage state, the two sealing plates 33 rotate to the limit position, and the storage trough 322 on the protective plate 32 is used to hold maintenance tools and repair waste. The connecting plate 41 and the two intermediate rods 42 rotate synchronously to the vertical downward position, and the fixing rod 43 is exposed to hang maintenance tools or waste bags. The two cover plates 34 rotate towards each other to the receiving state, and the locking block 44 at the end of the fixing rod 43 is inserted into the locking hole 341 of the cover plate 34 to limit and fix the connecting plate 41 and the intermediate rod 42. The traction block 51 slides to the locked state abutting against the outer side of the cover plate 34, the arc-shaped locking block 531 is engaged in the corresponding locking groove 433, and the top surface of the gripping rod 52 is attached to the bottom surface of the cover plate 34 to lock the position of the cover plate 34 to prevent it from moving downward and loosening. The top surface of the cover plate 34 can also be used to temporarily place maintenance tools and parts.

[0037] The embodiments described in this specific implementation are preferred embodiments of this application and are not intended to limit the scope of protection of this application. Identical components are represented by the same reference numerals. Therefore, all equivalent changes made to the structure, shape, and principle of this application should be covered within the scope of protection of this application.

Claims

1. An energy metering box that is easy to maintain in the later stage, comprising a box body (1), electrical components disposed inside the box body (1), two boxes (2) rotatably mounted on the front side of the box body (1), heat dissipation vents (11) opened on the left and right sides of the box body (1), and wiring ports (12) opened on the bottom surface, wherein the sides of the two boxes (2) that are far apart from each other when both boxes (2) are closed are closed surfaces (21); characterized in that, A support plate (31) with a rotating surface parallel to the closing surface (21) is rotatably installed on the inner side of the box door (2). The support plate (31) can be rotated to a horizontal support state and a vertically downward storage state. When the support plate (31) is in the support state, a vertically upward protective plate (32) is fixed on the side away from the box door (2). The top surface of the protective plate (32) is provided with a positioning groove (321). The inner side of the box door (2) is rotatably mounted with two sealing plates (33) located on opposite vertical sides of the support plate (31) and having elastic shortening properties. The rotating surface of the sealing plate (33) is parallel to the inner side of the box door (2). The sealing plate (33) can be rotated to a vertically upward sealing state and a vertically downward limiting state. When the two sealing plates (33) are in the sealing state, a cover plate (34) is detachably installed on the top surface along the direction of mutual approach. At this time, a positioning block (35) is fixed on the bottom surface of the cover plate (34). The inner side of the box door (2), the support plate (31) in the support state, the two sealing plates (33) in the sealing state and the protective plate (32) together constitute a storage cavity for storing electrical drawings. At this time, the sides of the two sealing plates (33) that are close to each other abut against the two vertical sides of the protective plate (32), and the positioning block (35) is elastically inserted into the positioning groove (321). The top surface of the protective plate (32) when the support plate (31) is in the storage state and the sealing plate (33) is in the limiting state is used to hold maintenance tools and maintenance waste.

2. The energy metering box according to claim 1, which facilitates later operation and maintenance, is characterized in that, The positioning block (35) has a first inclined surface (351) on its outer edge away from the cover plate (34).

3. The power metering box for easy maintenance as described in claim 1, characterized in that, When the support plate (31) is in a supported state, the protective plate (32) has a connecting plate (41) rotatably installed on the side away from the box door (2). The rotating surface of the connecting plate (41) is parallel to that of the support plate (31). Two intermediate rods (42) are rotatably installed side by side on the side edge of the connecting plate (41) away from the protective plate (32). The rotating surface of the intermediate rods (42) is parallel to the inner side of the box door (2) when the support plate (31) is in a supported state. The other end of the intermediate rods (42) is vertically fixed with a fixing rod (43). An arc-shaped protrusion (431) is fixed on the side of the two fixing rods (43) that are close to each other. The outer side of the arc-shaped protrusion (431) is an arc surface with a minor arc length. An arc-shaped groove (331) is opened on the side of the two sealing plates (33) that are far apart from each other when they are in a sealing state. When the support plate (31) is in the supporting state and the sealing plate (33) is in the sealing state, the connecting plate (41) rotates to the vertical upward state. At this time, the two intermediate rods (42) rotate to the coaxial state with opposite sides. The sides of the two fixed rods (43) that are close to each other abut against the sides of the two sealing plates (33) that are far apart. The arc-shaped protrusion (431) is inserted into the arc-shaped groove (331). When the support plate (31) is in the storage state and the sealing plate (33) is in the limiting state, the connecting plate (41) rotates to the vertical downward state. The two intermediate rods (42) rotate to the vertical downward side by side. The fixed rods (43) can be used to hang maintenance tools or garbage bags.

4. The energy metering box according to claim 3, which facilitates later operation and maintenance, is characterized in that, A locking block (44) is fixed on the outer periphery of the end of the fixed rod (43) away from the intermediate rod (42). The cover plate (34) is rotatably connected to the sealing plate (33). The rotating surface of the cover plate (34) is parallel to the side of the sealing plate (33). A locking hole (341) is opened on the cover plate (34). When the support plate (31) is in the retracted state and the sealing plate (33) is in the limited state, the two cover plates (34) rotate towards each other to the receiving state located below the support plate (31). The connecting plate (41) and the two intermediate rods (42) are in the vertical downward state at this time, and the locking block (44) is inserted into the locking hole (341).

5. The energy metering box according to claim 4, which facilitates later operation and maintenance, is characterized in that, The locking block (44) has a second inclined surface (441) on the outer edge of its side away from the fixing rod (43).

6. The energy metering box according to claim 4, which facilitates later operation and maintenance, is characterized in that, The fixed rod (43) has a traction block (51) slidably mounted on the side away from the middle rod (42) and located on the side of the locking block (44). The traction block (51) can slide back and forth along the length direction of the fixed rod (43) to adjust and fix it. The traction block (51) has a gripping rod (52) vertically fixed on the side away from the fixed rod (43). When the arc-shaped protrusion (431) is inserted into the arc-shaped groove (331), the traction block (51) can slide to the gripping state in the direction away from the locking block (44), and the outer peripheral surface of the end of the gripping rod (52) away from the traction block (51) abuts against the side of the locking block (44) away from the fixing rod (43); when the locking block (44) is inserted into the locking hole (341), the traction block (51) can slide to the locking state abutting against the outer side of the cover plate (34), and the top surface of the gripping rod (52) abuts against the bottom surface of the cover plate (34) at this time.

7. The energy metering box according to claim 6, which facilitates later operation and maintenance, is characterized in that, The gripping rod (52) has a third inclined surface (521) at the outer edge of its end away from the traction block (51).

8. The energy metering box according to claim 6, which facilitates later operation and maintenance, is characterized in that, A fourth arc surface (522) is provided at the outer periphery of the grip rod (52).

9. The energy metering box according to claim 6, which facilitates later operation and maintenance, is characterized in that, The traction block (51) is fixed with a dovetail slider (53), and the fixing rod (43) is provided with a dovetail groove (432) that slides with the dovetail slider (53); the dovetail slider (53) is provided with an arc-shaped locking block (531), which is an arc surface with a minor arc length on its outer side, and the bottom wall of the dovetail groove (432) is provided with several locking grooves (433) for the arc-shaped locking block (531) to be inserted into.

10. The energy metering box according to claim 1, which facilitates later operation and maintenance, is characterized in that, The protective plate (32) has a storage groove (322) on its top surface when the support plate (31) is in the storage state.

Images