Electric energy meter with fireproof structure

Abstract

The utility model relates to electric energy meter technical field discloses an electric energy meter with fire prevention structure, including the shell, the shell inner wall fixedly connected with the fixed plate, the fixed plate front end fixedly connected with the tenon, the tenon outer wall is provided with electric energy meter body, the shell inner wall right side is connected with the baffle no.

Description

Technical Field

[0001] This utility model relates to the field of electricity meter technology, and in particular to an electricity meter with a fireproof structure. Background Technology

[0002] As the core equipment of the electricity metering system, electricity meters are widely used in various electricity consumption scenarios such as residential buildings, commercial complexes, and industrial plants. Their core function is to accurately measure electricity consumption and provide a basis for the settlement of fees between electricity suppliers and consumers. With the continuous development of the power system, the usage environment of electricity meters is becoming increasingly complex. In addition to ensuring metering accuracy, fire safety, structural reliability, and ease of use during operation have become key factors affecting electricity safety and operation and maintenance efficiency, especially in densely populated areas or areas with concentrated electrical equipment.

[0003] Currently, although existing electricity meters are generally equipped with casings for basic protection, there is still room for improvement in practical applications. Most electricity meters use ordinary plastic materials for their casings and covers, without optimization for fire resistance, or only add fire-retardant coatings to certain parts of the casing. The overall fire protection capability is limited. When exposed to external fire, or when internal high temperatures are generated due to aging of wiring terminals, short circuits, or other problems, the ordinary material casing is prone to rapid combustion or softening, making it difficult to effectively block flames and high temperatures. This may not only damage the electricity meter itself and interrupt metering, but may also exacerbate the spread of fire, posing a threat to the safety of surrounding electrical equipment and the environment. In response to this technical problem, this application proposes an electricity meter with a fire-resistant structure. Utility Model Content

[0004] The purpose of this utility model is to address the shortcomings of existing technologies by proposing an electricity meter with a fireproof structure. The outer shell, cover plate one, and cover plate two are made of flame-retardant ABS plastic, which can effectively block flames and high temperatures in fire scenarios, reduce the risk of flames spreading inward or from the inside, and improve electrical safety. At the same time, with the help of the limiting rod one at the front end of the fixed plate, and the precise engagement of the limiting rod two on the left rear side of the cover plate two with the tenon block, a two-way limiting structure is formed.

[0005] To achieve the above objectives, the present invention provides the following technical solution:

[0006] An electricity meter with a fireproof structure includes a housing, a fixing plate fixedly connected to the inner wall of the housing, a tenon fixedly connected to the front end of the fixing plate, an electricity meter body disposed on the outer wall of the tenon, a second cover plate connected to the right side of the inner wall of the housing via a magnetic assembly, a first cover plate rotatably connected to the front end of the housing, the right side of the first cover plate being connected to the housing via a latch, and a transparent plate fixedly connected to the inner wall of the first cover plate. The housing, the second cover plate, and the first cover plate are all made of flame-retardant ABS plastic.

[0007] Furthermore, the magnetic suction assembly includes a magnetic suction plate located on the inner wall of the outer shell, and a magnet is provided at the right end of the magnetic suction plate, which is fixedly connected to the inner wall of the cover plate.

[0008] Furthermore, a pull rod is fixedly connected to the right end of the second cover plate.

[0009] Furthermore, two limiting rods are fixedly connected to the rear left side of the cover plate two. The two limiting rods two are arranged symmetrically to each other, and the dimensions of the two limiting rods two are the same as those of the tenon block.

[0010] Furthermore, a limiting rod 1 is fixedly connected to the left side of the front end of the fixing plate, and the width of the limiting rod 1 is the same as that of the two limiting rods 2.

[0011] Furthermore, a display screen is provided at the front end of the electricity meter body.

[0012] Furthermore, through holes are provided at both the top and bottom ends of the outer casing.

[0013] This utility model has the following beneficial effects:

[0014] 1. In this utility model, the outer shell, cover plate one, and cover plate two are made of flame-retardant ABS plastic, which can effectively block flames and high temperatures in fire scenarios, reduce the risk of flames spreading inward or from the inside, and improve electrical safety. At the same time, with the help of the limiting rod one at the front end of the fixing plate, and the precise engagement of the limiting rod two on the rear left side of cover plate two with the tenon block, a two-way limiting structure is formed, which can stably fix the electricity meter body and prevent it from shifting or loosening under conditions such as vibration and cable pulling, ensuring reliable connection of the wiring terminals and reducing the potential electrical fault hazards caused by poor contact.

[0015] 2. In this utility model, on the one hand, the magnetic suction plate on the inner wall of the outer shell and the magnet on the inner wall of the second cover plate form a magnetic suction assembly, which can realize the quick closing and disassembly of the second cover plate without the aid of tools. Compared with the traditional screw fixing method, it greatly shortens the installation and maintenance time. On the other hand, the transparent plate on the inner wall of the first cover plate allows direct observation of the display screen data on the front of the energy meter body. Meter reading can be completed without opening the first cover plate. At the same time, the pull rod on the right end of the second cover plate makes it easy for operators to apply force to open and close, further reducing the difficulty of use and improving the overall operation and maintenance efficiency. Attached Figure Description

[0016] Figure 1 This is a perspective view of an electricity meter with a fireproof structure proposed in this utility model;

[0017] Figure 2 This is a schematic diagram of the magnetic suction plate structure of an electricity meter with a fireproof structure proposed in this utility model;

[0018] Figure 3This is a schematic diagram of a limiting rod structure for an energy meter with a fireproof structure proposed in this utility model.

[0019] Figure 4 This is a schematic diagram of the limiting rod structure of an electricity meter with a fireproof structure proposed in this utility model.

[0020] Legend:

[0021] 1. Outer shell; 2. Cover plate one; 3. Lock; 4. Transparent plate; 5. Fixing plate; 6. Limiting rod one; 7. Tenon block; 8. Electricity meter body; 9. Display screen; 10. Magnetic plate; 11. Magnet; 12. Cover plate two; 13. Limiting rod two; 14. Pull rod. Detailed Implementation

[0022] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0023] Reference Figures 1-3 An embodiment of this utility model is provided: an energy meter with a fireproof structure, including a shell 1, a fixing plate 5 fixedly connected to the inner wall of the shell 1, a tenon block 7 fixedly connected to the front end of the fixing plate 5, an energy meter body 8 provided on the outer wall of the tenon block 7, a cover plate 2 12 connected to the right side of the inner wall of the shell 1 through a magnetic plate 10 and a magnet 11, a cover plate 1 2 rotatably connected to the front end of the shell 1, a lock 3 connected to the right side of the cover plate 1, a transparent plate 4 fixedly connected to the inner wall of the cover plate 1, and the shell 1, the cover plate 2 12 and the cover plate 1 2 are all made of flame-retardant ABS plastic;

[0024] Specifically, during the actual installation phase, the outer casing 1 is first fixed to the wall, the mounting bracket inside the distribution box, or other pre-set positions using adapter bolts. The flame-retardant ABS plastic used in the outer casing 1 not only meets the V-0 flame-retardant standard, which can block flames and high temperatures in a fire scenario, but its excellent electrical insulation also prevents the formation of a conductive path between internal live parts and the outside, reducing the risk of leakage. At the same time, the mechanical strength of the flame-retardant ABS plastic is sufficient to support the installation of subsequent components and long-term load-bearing, preventing the outer casing 1 from deforming. After removing the energy meter body 8, with the display screen 9 at the front facing outwards, the pre-set groove at the rear is aligned with the tenon 7 at the front of the fixing plate 5 and slowly pushed in until the energy meter body 8 is stably locked onto the fixing plate 5. The fixing plate 5, as the core support component of the inner wall of the outer casing 1, can evenly distribute the weight of the energy meter body 8. After the meter body 8 is initially fixed, the external power supply cable and load cable are connected to the corresponding terminals of the meter body 8 to prevent excessive local stress from causing structural damage. The cables can pass through the through holes at the top and bottom of the casing 1. These through holes not only guide the cable route and prevent the cables from piling up messily inside the casing 1, but also prevent the cables from directly rubbing against the edge of the casing 1, protecting the cable insulation layer from wear and extending the cable's service life. At this time, the cover plate 2 is in a closed state, and the latch 3 on its right side tightly fixes the cover plate 2 to the casing 1, which can prevent external dust and insects from entering the interior of the casing 1. The transparent plate 4 on the inner wall of the cover plate 2 allows meter readers to directly observe the power consumption data on the display screen 9 without opening the cover plate 2, improving daily operation and maintenance efficiency.

[0025] Reference Figures 2-4 The magnetic suction plate 10 is located on the inner wall of the outer shell 1. A magnet 11 is provided on the right end of the magnetic suction plate 10. The magnet 11 is fixedly connected to the inner wall of the cover plate 2 12. A pull rod 14 is fixedly connected to the right end of the cover plate 2 12. Two limiting rods 2 13 are fixedly connected to the rear side of the left end of the cover plate 2 12. The two limiting rods 2 13 are symmetrically arranged. The size between the two limiting rods 2 13 is the same as that between the tenon block 7. A limiting rod 1 6 is fixedly connected to the left side of the front end of the fixing plate 5. The width of the limiting rod 1 6 is the same as that of the two limiting rods 2 13. A display screen 9 is provided at the front end of the energy meter body 8. Through holes are opened at both the top and bottom ends of the outer shell 1.

[0026] Specifically, after the cable connection is completed, the operator pinches the pull rod 14 on the right end of the cover plate 12 and pushes the cover plate 12 inward to the right side of the outer shell 1. Since the cover plate 12 is made of flame-retardant ABS plastic, it is lightweight and requires no extra force during the pushing process. When the cover plate 12 approaches the inner wall of the outer shell 1, the magnet 11 fixed on its inner wall generates a magnetic attraction force with the magnetic suction plate 10 on the inner wall of the outer shell 1, realizing the quick closing and fixing of the cover plate 12. The attraction force of this magnetic suction component is precisely designed to ensure that the cover plate 12 does not loosen after closing, and will not cause difficulty in opening and closing later due to excessive attraction force. Compared with the traditional screw fixing method, the operation can be completed without carrying tools, which greatly shortens the maintenance time. At the same time, the two limiting rods 13 on the rear left side of the cover plate 12 will precisely engage with the tenon 7. With the limiting rod 6 on the left side of the front end of the fixing plate 5, bidirectional limiting is formed from the left and right sides of the energy meter body 8: the limiting rod 6 can prevent the energy meter body 8 from shifting to the left, and the limiting rod 13 restricts its movement to the right, effectively preventing the energy meter body 8 from loosening due to vibration and cable pulling inside the outer casing 1, ensuring the connection stability of the wiring terminals. In daily use, the value of the display screen 9 can be clearly observed through the transparent plate 4 of the cover plate 2. When it is necessary to inspect the energy meter body 8 or the cable, simply unlock the latch 3 and turn the cover plate 2 outward to open it. The latch 3 is made of corrosion-resistant metal plating, which is not easy to rust in humid environments, ensuring long-term reliability. The flame-retardant ABS material of the cover plate 2 can also continue to play a fire protection role during the inspection process, preventing external risks from intruding.

[0027] Working principle: First, the outer casing 1, made of flame-retardant ABS plastic and serving as the core of overall fire resistance and structural support, is fixed to a predetermined position in the wall or distribution box using adapter bolts. Then, the electricity meter body 8 is taken out, with the front side with the display screen 9 facing outwards. The rear groove is aligned with the tenon 7 at the front end of the fixing plate 5 on the inner wall of the outer casing 1 and pushed in, so that the electricity meter body 8 is stably locked onto the fixing plate 5. Next, the external power supply and load cables are connected to the corresponding terminals of the electricity meter body 8. The cables pass through the through holes at both ends of the top and bottom of the outer casing 1. Then, the pull rod 14 with anti-slip texture on the right end of the cover plate 12 is pinched and pushed, which is also made of flame-retardant ABS plastic. The cover plate 212, made of a certain material, uses the magnetic attraction between the magnet 11 on its inner wall and the magnetic suction plate 10 on the inner wall of the outer shell 1 to close the cover plate 212 on the right side of the outer shell 1. At the same time, the two limiting rods 213 on the rear left side of the cover plate 212 engage with the tenon block 7. Together with the limiting rod 16 on the left side of the front end of the fixing plate 5, the cover plate 2 is bidirectionally limited from both sides to prevent loosening. In daily use, there is no need to open the cover plate 2, which is fixed by the latch 3 at the front end of the outer shell 1. The power consumption value on the display screen 9 can be clearly observed through the impact-resistant transparent plate 4 on the inner wall of the cover plate 2. When it is necessary to repair the internal components, the latch 3 can be unlocked to rotate the cover plate 2 outward.

[0028] It is worth noting that the circuits and protection involved in the above embodiments are all based on the corresponding existing technologies according to the actual situation, and therefore will not be described in detail in the embodiments of this application.

[0029] Finally, it should be noted that the above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. Although the present utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present utility model should be included within the protection scope of the present utility model.

Claims

1. An electricity meter with a fire-resistant structure, characterized in that: The device includes an outer shell (1), a fixing plate (5) is fixedly connected to the inner wall of the outer shell (1), a tenon block (7) is fixedly connected to the front end of the fixing plate (5), an energy meter body (8) is provided on the outer wall of the tenon block (7), a cover plate two (12) is connected to the right side of the inner wall of the outer shell (1) through a magnetic suction assembly, a cover plate one (2) is rotatably connected to the front end of the outer shell (1), the right side of the cover plate one (2) is connected to the outer shell (1) through a buckle (3), a transparent plate (4) is fixedly connected to the inner wall of the cover plate one (2), and the outer shell (1), cover plate two (12) and cover plate one (2) are all made of flame-retardant ABS plastic.

2. The energy meter with a fireproof structure according to claim 1, characterized in that: The magnetic suction assembly includes a magnetic suction plate (10) located on the inner wall of the outer shell (1), and a magnet (11) is provided on the right end of the magnetic suction plate (10). The magnet (11) is fixedly connected to the inner wall of the cover plate (12).

3. An electricity meter with a fireproof structure according to claim 1, characterized in that: A pull rod (14) is fixedly connected to the right end of the cover plate 2 (12).

4. An electricity meter with a fireproof structure according to claim 1, characterized in that: Two limiting rods (13) are fixedly connected to the rear left end of the cover plate (12). The two limiting rods (13) are symmetrically arranged and the size between the two limiting rods (13) is the same as that between the tenon (7).

5. An electricity meter with a fireproof structure according to claim 1, characterized in that: The left side of the front end of the fixed plate (5) is fixedly connected to a limiting rod one (6), and the width of the limiting rod one (6) is the same as that of the two limiting rods two (13).

6. An electricity meter with a fireproof structure according to claim 1, characterized in that: The front end of the electricity meter body (8) is equipped with a display screen (9).

7. An electricity meter with a fireproof structure according to claim 1, characterized in that: The outer shell (1) has through holes at both the top and bottom ends.

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