An electric energy metering box convenient to disassemble

By incorporating features such as sliding snap-fit ​​posts and adjustable angle trays, the problems of cumbersome installation and inconvenient maintenance of electricity metering boxes have been solved. This enables quick disassembly and flexible adjustment, improving operational convenience and safety, reducing the failure rate, and extending equipment life.

CN121307664BActive Publication Date: 2026-05-12JIANGXI MINGTAI ELECTRICAL EQUIP CO LTD
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Patents(China)
Current Assignee / Owner
JIANGXI MINGTAI ELECTRICAL EQUIP CO LTD
Filing Date
2025-10-11
Publication Date
2026-05-12

AI Technical Summary

Technical Problem

The existing electricity metering boxes are cumbersome to install and inconvenient to maintain, especially in batch installations or emergency repairs, which are time-consuming. In addition, the internal structure is rigid, making it difficult to adjust the meter installation angle or support spacing to obtain the best operating view and working space.

Method used

The design incorporates sliding snap-fit ​​posts, adjustable angle brackets, sliding mounting strips, magnetic positioning, pull rod connecting ropes, and water guide channels to enable quick assembly and disassembly and flexible adjustment. Combined with the linkage of locking components and baffles, it ensures the stable installation and convenient operation of the meter.

Benefits of technology

Significantly reduces maintenance time, improves operational convenience and safety, ensures stable installation of meters of different specifications, provides optimal visibility and operating space, reduces failure rate and extends equipment life.

✦ Generated by Eureka AI based on patent content.

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Abstract

The present application relates to the field of electric energy metering box, especially to a kind of electric energy metering box convenient to disassemble, including mounting plate, slidingly connected with clamping column on mounting plate, installation box body is clamped in the front side of mounting plate, slidingly connected with supporting plate in installation box body, rotating plate is rotatably connected on supporting plate, first fixed column is all installed in the front side of supporting plate, locking piece is rotatably installed on corresponding first fixed column, installation strip is slidingly connected on rotating plate, fastening assembly is threadedly arranged on installation strip, second fixed column is arranged in the upper and lower sides of supporting plate, and rotatingly connected with rotating plate.The present application realizes installation box quick disassembly by sliding clamping column cooperation with baffle inclined surface linkage, only pulls box to trigger clamping column unlocking, eliminates tool operation time-consuming and labor-consuming problem, substantially shortens maintenance time, rotating supporting plate is matched with locking piece and sliding installation strip design, supports electric meter installation inclination stepless adjustment and installation strip spacing flexible adjustment.
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Description

Technical Field

[0001] This invention relates to the field of electricity metering boxes, and more particularly to an electricity metering box that is easy to assemble and disassemble. Background Technology

[0002] As a key node in the electricity billing system, the ease of installation, maintenance efficiency, and operational safety of electricity metering boxes are of paramount importance. Currently, conventional metering boxes generally suffer from cumbersome installation processes. The fixing of the box to the base mainly relies on tightening or loosening multiple screws one by one, which is particularly time-consuming in batch installations or emergency repair scenarios. In addition, the internal structure of the box is relatively rigid, and the brackets used to support the electricity meters are mostly fixed designs or have only limited adjustment capabilities. When it is necessary to install new smart meters of different sizes or specifications or to perform maintenance wiring, it is often difficult to conveniently adjust the installation angle of the meter or the support spacing to obtain the best operating view and working space, which brings inconvenience to the operation of maintenance personnel and may affect work efficiency and user experience.

[0003] Therefore, in order to address the above problems, a power metering box that is easy to assemble and disassemble is now being developed. Summary of the Invention

[0004] To overcome the shortcomings of existing devices, the present invention provides an energy metering box that is easy to assemble and disassemble.

[0005] The technical solution of the present invention is as follows: an easy-to-assemble and disassemble electricity metering box, comprising: a mounting plate, on which snap-fit ​​posts are slidably connected; a mounting box body, which is snap-fitted to the front side of the mounting plate; a tray, which is slidably connected inside the mounting box body; a rotating plate, which is rotatably connected to the tray; first fixing posts, all of which are installed on the front side of the tray; locking members, which are rotatably installed on the corresponding first fixing posts; mounting strips, which are slidably connected to the rotating plate and are distributed vertically for mounting a meter; fastening components, which are threadedly disposed on the mounting strips, and adjusting the fastening components loosens the mounting strips to facilitate adjustment of their position; and second fixing posts, which are disposed on the upper and lower sides inside the tray and are rotatably connected to the rotating plate.

[0006] As a further preferred embodiment, the system also includes a connecting rod, which is slidably mounted on the lower part of the tray; a first magnetic block, which is mounted on the left and right sides of the connecting rod and connected by a connecting line; and a second magnetic block, which is mounted on the left and right sides of the mounting box and is used to attract and position the first magnetic block.

[0007] As a further preferred embodiment, the device also includes a grounding component installed on the lower right side of the mounting housing, with an elastic sheet mounted on its top; a wire installed on the support plate and capable of contacting the elastic sheet; and a terminal block installed on the wire for connecting to a ground wire.

[0008] As a further preferred embodiment, it also includes a connecting rope connected to the connecting rod and slidably connected to the front side of the mounting box; and a pull rod connected to the front side of the connecting rope.

[0009] As a further preferred embodiment, the device also includes a fixing member installed on the rear sides of the left and right sides of the mounting housing; a connector installed on the fixing member; and a plug installed on the connector for waterproofing and plugging the rear holes of the mounting housing.

[0010] As a further preferred embodiment, a baffle is also included, which is installed on the rear side of the mounting box. The baffle serves two purposes: firstly, to block water for protection, and secondly, to push the locking posts on the mounting plate when the mounting box is disassembled.

[0011] As a further preferred embodiment, a water guide channel is also included, with the water guide channel located at the bottom of the mounting box.

[0012] As a further preferred embodiment, the mounting housing and the mounting plate are detachable connection structures.

[0013] As a further preferred embodiment, a door cover is rotatably connected to the front side of the mounting housing.

[0014] As a further preferred embodiment, the bend in the baffle is a sloping structure.

[0015] By adopting the above technical solution, the present invention has the following advantages:

[0016] 1. This invention achieves quick disassembly of the installation box through the linkage of sliding locking pins and inclined baffles. Simply pulling the box triggers the locking pins to unlock, eliminating the time-consuming and laborious problem of tool operation and significantly shortening maintenance time. The rotating tray, combined with locking components and sliding installation strips, supports stepless adjustment of the meter installation tilt angle and flexible adjustment of the installation strip spacing, ensuring stable installation of meters of different specifications while providing optimal visibility and operating space. The lower magnetic positioning and pull rod connecting rope mechanism enable smooth entry and exit of the tray and precise positioning, facilitating wiring and maintenance, and significantly improving operational convenience and safety.

[0017] 2. This invention ensures safe operation through the integration of multiple protective structures. The elastic design of the grounding component ensures that a reliable grounding connection is automatically formed when the tray is pushed in, eliminating the risk of electric shock during maintenance. The rear-mounted connector effectively seals the wire hole to prevent moisture intrusion. The water channel promptly drains any accidental water accumulation inside, delaying component corrosion. The baffle also has the dual functions of protecting the cable interface and unlocking the connector post. The overall design can maintain stable insulation protection capabilities even in harsh environments, reducing the failure rate and extending the service life of the equipment. Attached Figure Description

[0018] Figure 1 This is a first-view three-dimensional structural diagram of the present invention.

[0019] Figure 2 This is a second-view three-dimensional structural diagram of the present invention.

[0020] Figure 3 This is a schematic diagram of a partial cross-sectional three-dimensional structure of the present invention.

[0021] Figure 4 This is a schematic diagram of a second partial cross-sectional three-dimensional structure of the present invention.

[0022] Figure 5 This is a schematic diagram of the third partial cross-sectional three-dimensional structure of the present invention.

[0023] Figure 6 This is a schematic diagram of the fourth partial cross-sectional three-dimensional structure of the present invention.

[0024] Figure 7 This is a partial three-dimensional structural schematic diagram of the present invention.

[0025] Figure 8 This is a schematic diagram of the fifth partial cross-sectional three-dimensional structure of the present invention.

[0026] Wherein: 1-Mounting plate, 2-Mounting box, 3-Door cover, 4-Panel, 5-Rotating plate, 6-First fixing post, 7-Locking component, 8-Fastening assembly, 9-Mounting strip, 10-Second fixing post, 11-Connecting rod, 12-First magnetic block, 13-Second magnetic block, 14-Grounding component, 15-Wire, 16-Terminal, 17-Connecting rope, 18-Pull rod, 19-Fixing component, 20-Connecting component, 21-Blocking component, 22-Baffle, 23-Water guide channel. Detailed Implementation

[0027] The present invention will be further described below with reference to specific embodiments. It should also be noted that, unless otherwise explicitly specified and limited, terms such as "set," "install," "connect," and "link" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal connection of two components. Those skilled in the art can understand the specific meaning of the above terms in the present invention based on the specific circumstances.

[0028] An easy-to-assemble and disassemble electricity metering box, such as Figures 1-8 As shown, the system includes a mounting plate 1 with sliding connecting posts, a mounting housing 2 that snaps onto the front of the mounting plate 1 (the mounting housing 2 and mounting plate 1 have a detachable connection structure), a door cover 3 that is rotatably connected to the front of the mounting housing 2, a tray 4 that is slidably connected inside the mounting housing 2, a rotating plate 5 that is rotatably connected to the tray 4, first fixing posts 6 that are all installed on the front of the tray 4, locking pieces 7 that are rotatably installed on the corresponding first fixing posts 6, mounting strips 9 that are slidably connected to the rotating plate 5 and are distributed vertically for mounting meters, fastening components 8 that are threaded onto the mounting strips 9, adjusting the fastening components 8 to loosen the mounting strips 9 for easy adjustment of their position, second fixing posts 10 that are located on the upper and lower sides inside the tray 4 and are rotatably connected to the rotating plate 5, a connecting rod 11 that is slidably installed on the lower part of the tray 4, first magnetic blocks 12 that are installed on the left and right sides of the connecting rod 11 and connected by a connecting wire, and second magnetic blocks 13 that are rotatably connected to the rotating plate 5. Installed on the left and right sides inside the mounting box 2, it is used to adsorb and position the first magnetic block 12. The grounding component 14 is installed on the lower right side inside the mounting box 2. An elastic sheet is installed on the top of the grounding component 14. The wire 15 is installed on the support plate 4 and can contact the elastic sheet. The terminal 16 is installed on the wire 15 for connecting the ground wire. The connecting rope 17 is connected to the connecting rod 11 and is slidably connected to the front side of the mounting box 2. The pull rod 18 is connected to the front side of the connecting rope 17. The fixing component 19 is installed on the left and right rear sides of the mounting box 2. The connecting component 20 is installed on the fixing component 19. The plug 21 is installed on the connecting component 20 for waterproofing the holes on the rear side of the mounting box 2. The baffle 22 is installed on the rear side of the mounting box 2. On the one hand, it is used for water protection. On the other hand, it is used to push the snap-fit ​​post on the mounting plate 1 when disassembling the mounting box 2. The bend of the baffle 22 is a sloping structure. A water guide groove 23 is opened at the bottom inside the mounting box 2.

[0029] It should be noted that the mounting plate 1, as the fixed base of the entire device, is pre-fixed to the wall or supporting structure. The sliding snap-fit ​​posts on it are in a ready state. When mounting is required, the entire mounting box 2 is aligned and pushed forward against the mounting plate 1. The rear structure of the box guides and forces the snap-fit ​​posts to slide and securely snap together, forming the main load-bearing structure. The meter mounting system inside the box is highly adjustable. The tray 4, as the core load-bearing platform, is rotatably connected to the rotating plate 5 through the second fixing posts 10 installed on its left and right sides. This allows the user to manually raise or lower the entire tray 4 to a tilt angle that facilitates wiring and reading. Once the angle is determined, the user operates the locking piece 7 on the first fixing post 6 on the front side of the tray 4 to rotate or press it, making it press tightly against the rotating plate 5 and... To maintain stability during operation, a sliding mounting strip 9 is installed on the rotating plate 5 to accommodate different meter specifications. By loosening the threaded fastening component 8 on the mounting strip 9, the mounting strip 9 can slide freely along the rotating plate 5 to adjust its spacing. After the meter is accurately positioned, the fastening component 8 is tightened to secure it firmly. When the entire housing needs to be removed for inspection or replacement, the user pulls the housing backward. At this time, the baffle 22 fixed at the rear of the housing (its bend is designed with a specific angled slope) moves accordingly. The slope exerts a squeezing force on the locking pins on the mounting plate 1, forcing the locking pins to slide in the unlocking direction, thus automatically releasing the locking mechanism. This allows the entire housing to be easily removed simply by pulling the housing. The baffle 22 also serves as... To protect the cable interface at the rear of the enclosure from water splashes or external impacts, and to ensure convenient internal operation, the tray 4 is additionally equipped with a magnetic positioning mechanism at its lower part. A sliding connecting rod 11 is mounted below the tray 4, with first magnetic blocks 12 on its left and right sides, held in relative position by connecting lines. When the tray 4 is pushed into the enclosure to a preset depth, the first magnetic blocks 12 and the second magnetic blocks 13 pre-installed on the left and right sides of the enclosure approach each other, generating magnetic attraction. This ensures precise positioning and automatic return of the tray 4 during entry and exit, preventing it from wobbling. A grounding component 14 is fixedly installed on the lower right side inside the enclosure 2, with a flexible metal contact piece (elastic piece) connected to its top. The tray 4 is equipped with a connector for the wiring terminal 16. The conductor 15 and the terminal block 16 are used to connect the grounding lead of the equipment. When the tray 4 is fully pushed into the working position of the enclosure, the end of the conductor 15 will accurately contact and press the elastic sheet to form a reliable low-resistance path, ensuring the forced grounding safety of the equipment during operation. The connecting rod 11 connected to the lower part of the tray 4 also extends forward to form a connecting rope 17. The rope passes through and slides and guides on the front side of the mounting enclosure 2. The front end of the connecting rope 17 is fixed with a pull rod 18. When it is necessary to pull out the tray 4 for maintenance or wiring, simply pull the pull rod 18 outward at the front panel of the enclosure. The connecting rope 17 can then smoothly move the entire connecting rod 11 and the tray 4 out, avoiding the inconvenience of the operator having to reach into the enclosure. To prevent external moisture or water from entering through the holes for fixing cables,The left and right rear sides of the box are equipped with fixing parts 19, which are connected to specially made flexible connectors 20. Rubber plugs 21 are installed at the ends of these connectors. After installation, the plugs 21 can be tightly inserted into the pre-drilled wiring holes on the rear side of the box, achieving a waterproof seal through their elasticity and filling properties. In addition, the bottom plate inside the box has a specially designed water-guiding groove 23. This design is used to deal with internal condensation or minor water seepage in case of accidents, guiding accumulated water to drain orderly from the bottom of the box along the groove, preventing electrical components from being submerged for extended periods and improving operational reliability in humid environments. In summary, this electricity metering box integrates sliding snap-fit ​​linkage, adjustable angle support plate 4, slide rail mounting strip 9, magnetic positioning, grounding bridging, pull rope operation, waterproof plugs for holes, and water-guiding grooves, achieving core functions such as rapid tool-less assembly and disassembly, flexible adaptation to various meters, convenient operation and adjustment, and comprehensive environmental protection, while ensuring structural stability and electrical safety.

[0030] The above description is only a preferred embodiment of the present invention. It should be noted that for those skilled in the art, several improvements and modifications can be made without departing from the principle of the present invention, and these improvements and modifications should also be considered within the scope of protection of the present invention.

Claims

1. An easily detachable and assembleable electricity metering box, characterized in that: The system includes a mounting plate (1) with a sliding snap-fit ​​post; a mounting housing (2) snap-fitted to the front of the mounting plate (1); a tray (4) slidably connected inside the mounting housing (2); a rotating plate (5) rotatably connected to the tray (4); first fixing posts (6) all mounted on the front of the tray (4); and locking elements (7) rotatably mounted on the corresponding mounting plate. The first fixed post (6) is mounted on a mounting strip (9), which is slidably connected to the rotating plate (5) and distributed vertically for mounting a meter; a fastening assembly (8), which is threadedly mounted on the mounting strip (9), and adjusting the fastening assembly (8) loosens the mounting strip (9) to facilitate adjustment of the position of the mounting strip (9); and a second fixed post (10), which is located on the upper and lower sides of the support plate (4) and is rotatably connected to the rotating plate (5). It also includes a baffle (22), which is installed on the rear side of the mounting box (2) for water protection and for pushing the snap-fit ​​pin on the mounting plate (1) when the mounting box (2) is disassembled.

2. The easily detachable and assembleable electricity metering box as described in claim 1, characterized in that: It also includes a connecting rod (11), which is slidably installed on the lower part of the tray (4); a first magnetic block (12), which is installed on the left and right sides of the connecting rod (11), and the first magnetic block (12) and the connecting rod (11) are connected by a connecting line; and a second magnetic block (13), which is installed on the left and right sides inside the mounting box (2) for adsorbing and positioning the first magnetic block (12).

3. The easily detachable and assembleable energy metering box as described in claim 2, characterized in that: It also includes a grounding component (14), which is installed on the lower right side inside the mounting box (2), and an elastic sheet is installed on the top of the grounding component (14); a wire (15), which is installed on the tray (4) and can contact the elastic sheet; and a terminal block (16), which is installed on the wire (15) and is used to connect to the ground wire.

4. The easily detachable and assembleable electricity metering box as described in claim 3, characterized in that: It also includes a connecting rope (17) which is connected to the connecting rod (11) and is slidably connected to the front side of the mounting box (2); and a pull rod (18) which is connected to the front side of the connecting rope (17).

5. The easily detachable and assembleable electricity metering box as described in claim 4, characterized in that: It also includes a fixing member (19), which is installed on the left and right rear sides of the mounting box (2); a connector (20), which is installed on the fixing member (19); and a plug (21), which is installed on the connector (20) for waterproofing and plugging the rear holes of the mounting box (2).

6. The easily detachable and assembleable electricity metering box as described in claim 1, characterized in that: It also includes a water guide channel (23), and the bottom of the mounting box (2) has a water guide channel (23).

7. The easily detachable and assembleable electricity metering box as described in claim 1, characterized in that: Door cover (3), which is rotatably connected to the front side of the mounting box (2).

8. The easily detachable and assembleable electricity metering box as described in claim 1, characterized in that: The bend of the baffle (22) is a sloping structure.