Waterproof structure for meter box number hollow part

By combining a waterproof shell, an organic plate, and an embedded plate, the waterproofing problem at the cutout of the meter box's account number area is solved, achieving stable installation and waterproofing performance of the account number plate, and improving the meter box's waterproofing and durability.

CN224288927UActive Publication Date: 2026-05-26JIANGSU CHENGWEI POWER EQUIP CO LTD
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
JIANGSU CHENGWEI POWER EQUIP CO LTD
Filing Date
2025-06-11
Publication Date
2026-05-26

AI Technical Summary

Technical Problem

The existing metering box has a perforated design at the customer number area, which allows rainwater to seep into the box during rain, affecting the safety of the metering device.

Method used

The design combines a waterproof shell, an organic panel, and an embedded panel. Through the use of through holes, sealing rings, and clamping screws, a waterproof structure is formed to ensure the stable installation and waterproof performance of the unit number panel.

Benefits of technology

It effectively prevents rainwater from seeping in, improves the waterproof effect of the meter box, reduces the risk of equipment failure, reduces maintenance costs and frequency, and ensures that the account number information is clearly visible.

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Abstract

The utility model belongs to the technical field of metering boxes, and particularly relates to a waterproof structure for the hollowed-out part of the household number of a metering box. The waterproof structure for the hollowed-out part of the household number of this application includes: a metering box door, wherein a plurality of waterproof shells are fixedly connected to the inner side wall of the metering box door; a plurality of through holes are opened on the surface of the metering box door; an organic board is placed in the inner cavity of the waterproof shell; an embedding board is fixedly connected to the front surface of the organic board; a household number placement groove is opened on one side at the top of the organic board; a pressing screw is threadedly connected to the back surface of the waterproof shell; a waterproof member is arranged between the organic board and the through holes; a guiding member is arranged at the top of the organic board. Through the combined design of the waterproof shell, the organic board and the embedding board, the waterproof structure for the hollowed-out part of the household number of this application effectively solves the waterproof problem of the traditional hollowed-out structure while ensuring the convenient replacement of the household number board. The waterproof shell is fixed to the inner side of the metering box door and forms a protective space corresponding to the through holes.
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Description

Technical Field

[0001] This utility model belongs to the technical field of metering boxes, specifically relating to a waterproof structure for the perforated area of ​​a metering box. Background Technology

[0002] A metering box is a specialized enclosure in a power system used to install electricity metering devices. Based on the installation scenario, it is divided into outdoor and indoor types. The former requires waterproof, sun-proof, and corrosion-resistant properties, while the latter emphasizes safety protection and ease of installation. Based on user type, it can also be divided into single-phase and three-phase, respectively suited to the electricity needs of residential households and industrial / commercial users. The enclosure integrates core components such as electricity meters, current transformers, and terminal blocks.

[0003] The existing utility model patent with publication number CN212905001U discloses a measuring box. It describes a method where "a new fixing ring and transparent glass are placed inside the observation port, allowing a locking block to be inserted into a locking groove to replace the new transparent glass; or the locking block is pushed towards the bottom of the limiting groove to disengage it, allowing the fixing ring and transparent glass to be removed from the observation port." While this addresses the issue that "the observation window is directly exposed to the outside environment, and over time, more and more dust accumulates on it, damaging the observation window," it does not solve the problem of "dust accumulating on the observation window over time, causing damage." The problem of "contamination making the observation window unclear, requiring staff to spend a lot of time wiping away the dirt attached to the observation window" exists. However, the original design of the metering box's account number area was a cutout with a metal sheet covering the back. The front of the metal sheet had the account number plate for relevant personnel to view. Although this design facilitated the replacement of account number information and reduced costs, it had obvious waterproof defects in outdoor environments. When it rained, even with the metal sheet covering it, rainwater could still seep into the box through the cutout, affecting the safety of the metering device. Therefore, a waterproof structure for the cutout of the metering box's account number area was proposed. Utility Model Content

[0004] The purpose of this utility model is to provide a waterproof structure for the perforated area of ​​the metering box, in order to solve the technical problem that the original design of the metering box area was a perforation, and that rainwater would still seep into the box body through the perforation when it rained, even if there was a metal sheet to block it, thus affecting the safety of the metering device, thereby achieving the purpose of improving the waterproof effect of the metering box.

[0005] To solve the above-mentioned technical problems, this utility model provides a waterproof structure for the hollowed-out part of the metering box, including a metering box door, with multiple waterproof shells fixedly connected to the inner side wall of the metering box door, and multiple through holes opened on the surface of the metering box door;

[0006] An organic board is placed inside the waterproof shell. An embedded plate is fixedly connected to the front of the organic board. A customer number placement groove is opened on one side of the top of the organic board. A clamping screw is threaded to the back of the waterproof shell. A waterproof component is provided between the organic board and the through hole. A guide component is provided on the top of the organic board.

[0007] Furthermore, the through hole corresponds to the position of the waterproof shell, and the embedded plate is placed inside the cavity of the through hole.

[0008] Furthermore, a household number plate is placed inside the cavity of the household number placement slot, and a connecting hole is provided in the middle of the back of the organic plate.

[0009] Furthermore, one end of the clamping screw penetrates the inner cavity of the connecting hole and abuts against the back of the account number plate.

[0010] Furthermore, the waterproof component includes an inner groove formed in the inner wall of the through hole, and a sealing ring is fixedly connected to the side of the embedded plate, the sealing ring being placed in the inner groove.

[0011] Furthermore, the guide includes guide grooves formed on both sides of the top of the waterproof shell, and L-shaped side strips are fixedly connected to both sides of the top of the organic plate. A guide block is fixedly connected to the bottom of one end of the L-shaped side strip, and the guide block is slidably connected to the inner cavity of the guide groove on the same side.

[0012] Furthermore, the organic board and the embedded board are made of colorless and transparent material.

[0013] The beneficial effects of this utility model are:

[0014] 1. The waterproof structure of the meter box's customer number cutout area, through the combination design of a waterproof shell, an organic plate, and an embedded plate, effectively solves the waterproofing problem of traditional cutout structures while ensuring convenient replacement of the customer number plate. The waterproof shell is fixed to the inside of the meter box door, forming a protective space corresponding to the through hole; the colorless and transparent organic plate and embedded plate not only clearly display the customer number information, but also tightly fill the gap between the embedded plate and the through hole through the cooperation of the sealing ring and the inner groove, blocking the path of rainwater infiltration. The tightening screw passes through the connecting hole to fix the customer number plate, ensuring the stability of the information display component. The overall structure takes into account both practicality and waterproofing, significantly improving the reliability and durability of the meter box in outdoor environments, reducing the risk of equipment failure caused by rainwater intrusion, and reducing maintenance costs and frequency.

[0015] To make the above-mentioned objectives, features and advantages of this utility model more apparent and understandable, preferred embodiments are described below in detail with reference to the accompanying drawings. Attached Figure Description

[0016] To more clearly illustrate the specific embodiments of this utility model or the technical solutions in the prior art, the drawings used in the description of the specific embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are some embodiments of this utility model. For those skilled in the art, other drawings can be obtained from these drawings without creative effort.

[0017] Figure 1 This is a schematic diagram of the overall structure of this utility model;

[0018] Figure 2 This is a partial structural diagram of the present invention.

[0019] Figure 3 This is a structural schematic diagram of the waterproof shell of this utility model;

[0020] Figure 4 This is a structural diagram showing the partial disassembly of the waterproof shell of this utility model.

[0021] In the picture:

[0022] 1. Metering box door; 2. Waterproof shell; 3. Organic board; 4. Embedded board; 5. Household number placement slot; 6. Clamping screw; 7. Waterproof component; 71. Inner groove; 72. Sealing ring; 8. Guide component; 81. Guide groove; 82. L-shaped side strip; 83. Guide block; 9. Household number plate; 10. Connecting hole; 11. Through hole. Detailed Implementation

[0023] To make the objectives, technical solutions, and advantages of the embodiments of this utility model clearer, the technical solutions of this utility model will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some, not all, of the embodiments of this utility model. Based on the embodiments of this utility model, all other embodiments obtained by those skilled in the art without creative effort are within the protection scope of this utility model.

[0024] Example:

[0025] like Figures 1 to 4 As shown, a waterproof structure for the perforated part of a metering box includes a metering box door 1. Multiple waterproof shells 2 are fixedly connected to the inner side wall of the metering box door 1. They are firmly connected to the metering box door 1 by welding, screw fixing, etc. The inner cavity of the waterproof shell 2 is used to accommodate the organic plate 3. The back is provided with threaded holes to fit the clamping screws 6. Multiple through holes 11 are opened on the surface of the metering box door 1.

[0026] Organic board 3, with its high transparency, impact resistance, and strong weather resistance, can be exposed outdoors for extended periods without yellowing or becoming brittle. Organic board 3 is placed inside the waterproof shell 2. The embedded plate 4 on the front mates with the through hole 11 for secure installation. The top slot 5 for storing the number plate 9 is used, and the connecting hole 10 in the middle provides a channel for the clamping screw 6, ensuring the number plate 9 is firmly fixed. Simultaneously, it serves as a transparent protective barrier for the number display, combining waterproofing and visibility. Organic board 3 is placed inside the waterproof shell 2, and the front of organic board 3 is fixedly connected to the embedded plate. Plate 4 is precisely fitted to the through hole 11. A household number placement groove 5 is provided on one side of the top of the organic plate 3. The groove is rectangular or recessed and its size is slightly larger than that of the household number plate 9 to facilitate the insertion and removal of the household number plate 9. A clamping screw 6 is threaded on the back of the waterproof shell 2 to clamp the household number plate 9 and the organic plate 3. This prevents the part of the organic plate 3 embedded in the plate 4 from detaching from the inner cavity of the through hole 11 after the front of the organic plate 3 is subjected to force, which would cause the waterproof structure to fail. A waterproof component 7 is provided between the organic plate 3 and the through hole 11, and a guide component 8 is provided on the top of the organic plate 3.

[0027] like Figure 1-4 As shown, the through hole 11 corresponds to the position of the waterproof shell 2. The embedded plate 4 is placed in the inner cavity of the through hole 11. The household number plate 9 is placed in the inner cavity of the household number placement slot 5. A connecting hole 10 is opened in the middle of the back of the organic plate 3. Its size is larger than the outer diameter of the clamping screw 6 to ensure that the clamping screw 6 can pass through smoothly. One end of the clamping screw 6 passes through the inner cavity of the connecting hole 10 and abuts against the back of the household number plate 9. The organic plate 3 and the embedded plate 4 are made of colorless and transparent material.

[0028] like Figure 2 and 3 As shown, the waterproof component 7 includes an inner groove 71 formed in the inner wall of the through hole 11, which provides installation space for the sealing ring 72. The sealing ring 72 is fixedly connected to the side of the embedded plate 4. The sealing ring 72 is placed in the inner groove 71, which effectively fills the gaps and improves the waterproof performance.

[0029] like Figure 3 and 4 As shown, the guide member 8 includes guide grooves 81 on both sides of the top of the waterproof shell 2, providing a sliding track for the guide block 83. L-shaped side strips 82 are fixedly connected to both sides of the top of the organic plate 3. A guide block 83 is fixedly connected to the bottom of one end of the L-shaped side strip 82. The guide block 83 is slidably connected to the inner cavity of the guide groove 81 on the same side, guiding the organic plate 3 to be installed quickly and accurately.

[0030] In summary, firstly, the waterproof shell 2 is pre-fixed to the inside of the metering box door 1 by welding or screws, precisely corresponding to the surface through hole 11 to form a protective space. During operation, the operator places the organic plate 3 on the waterproof shell 2, and the guide blocks 83 on both sides fall into the two guide grooves 81, allowing the embedded plate 4 to quickly align with the through hole 11. Then, the operator pushes the organic plate 3 by hand, causing the embedded plate 4 to enter the through hole 11. The sealing ring 72 on the side of the embedded plate 4 automatically engages with the inner groove 71 of the inner wall of the through hole 11, compressing and deforming to fill the gap and form a waterproof sealing layer. Subsequently, the operator places the household number plate 9... The customer number placement slot 5 of the organic plate 3 is inserted, and the clamping screw 6 is screwed in from the back of the waterproof shell 2, passing through the connecting hole 10 to clamp the customer number plate 9 and the organic plate 3. This not only fixes the customer number information, but also prevents the organic plate 3 from shifting under force, which would cause the seal to fail. During use, the organic plate 3 and the embedded plate 4 ensure that the customer number is clearly visible due to their high transparency. The weather-resistant material resists the corrosion of the outdoor environment. The waterproof shell 2 is used to catch the infiltrated rainwater and prevent rainwater from entering the interior of the device. The sealing ring 72 continuously blocks the seepage path, ensuring that the metering box is both waterproof and durable in long-term use, reducing the frequency of maintenance.

[0031] All the devices selected in this application are general standard parts or components known to those skilled in the art. Their structures and principles can be learned by those skilled in the art through technical manuals or conventional experimental methods.

[0032] In the description of the embodiments of this utility model, unless otherwise explicitly specified and limited, the terms "installation," "connection," and "linking" 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 this utility model based on the specific circumstances.

[0033] In the description of this utility model, it should be noted that the terms "center," "upper," "lower," "left," "right," "vertical," "horizontal," "inner," and "outer," etc., indicating the orientation or positional relationship, are based on the orientation or positional relationship shown in the accompanying drawings and are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this utility model. Furthermore, the terms "first," "second," and "third" are used for descriptive purposes only and should not be construed as indicating or implying relative importance.

[0034] Based on the above-described preferred embodiments of this utility model, and through the foregoing description, those skilled in the art can make various changes and modifications without departing from the technical concept of this utility model. The technical scope of this utility model is not limited to the contents of the specification, but must be determined according to the scope of the claims.

Claims

1. A waterproof structure for the perforated area of ​​a metering box, characterized in that, include: Metering box door (1), the inner side wall of the metering box door (1) is fixedly connected with multiple waterproof shells (2), and the surface of the metering box door (1) is provided with multiple through holes (11); Organic plate (3) is placed in the inner cavity of waterproof shell (2). An embedded plate (4) is fixedly connected to the front of the organic plate (3). A household number placement groove (5) is opened on one side of the top of the organic plate (3). A clamping screw (6) is threadedly connected to the back of the waterproof shell (2). A waterproof component (7) is provided between the organic plate (3) and the through hole (11). A guide component (8) is provided on the top of the organic plate (3).

2. The waterproof structure for the perforated area of ​​the meter box as described in claim 1, characterized in that, The through hole (11) corresponds to the position of the waterproof shell (2), and the embedded plate (4) is placed in the inner cavity of the through hole (11).

3. The waterproof structure for the perforated area of ​​the meter box as described in claim 1, characterized in that, The inner cavity of the household number placement slot (5) is filled with a household number plate (9), and a connecting hole (10) is provided in the middle of the back of the organic plate (3).

4. The waterproof structure for the perforated area of ​​the meter box as described in claim 1, characterized in that, One end of the clamping screw (6) passes through the inner cavity of the connecting hole (10) and abuts against the back of the number plate (9).

5. The waterproof structure for the perforated area of ​​the meter box as described in claim 1, characterized in that, The waterproof component (7) includes an inner groove (71) formed in the inner wall of the through hole (11), and a sealing ring (72) is fixedly connected to the side of the embedded plate (4), and the sealing ring (72) is placed in the inner groove (71).

6. The waterproof structure for the perforated area of ​​the meter box as described in claim 1, characterized in that, The guide (8) includes guide grooves (81) on both sides of the top of the waterproof shell (2), and L-shaped side strips (82) are fixedly connected to both sides of the top of the organic plate (3). A guide block (83) is fixedly connected to the bottom of one end of the L-shaped side strip (82), and the guide block (83) is slidably connected to the inner cavity of the guide groove (81) on the same side.

7. The waterproof structure for the perforated area of ​​the meter box as described in claim 1, characterized in that, The organic board (3) and the embedded board (4) are made of colorless and transparent material.