Electric energy meter for preventing electricity larceny

Abstract

The utility model discloses a kind of electricity larceny-preventing electric energy meter, including bottom shell, left upper cover, right upper cover and bottom shell bottom wall iron plate, bottom shell is equipped with the iron plate positioning structure by pressing clamping piece, side positioning column and middle positioning column. Pressing clamping piece is set left and right, including integrally-formed positioning frame and elastic sheet with elastic protruding part;Two side positioning columns are separately arranged on the upper and lower sides of iron plate, and the first positioning hole is correspondingly arranged on the iron plate;Two middle positioning columns are separately arranged on the left and right sides of iron plate, and the second positioning hole is correspondingly arranged on the iron plate. The structure is axially positioned by positioning column and positioning hole cooperation, and the elastic protruding part of elastic sheet is transversely limited, and multiple components cooperatively form three-dimensional fixation. Its beneficial effect lies in that, compared with traditional bolt connection, iron plate installation can be quickly completed without tools, and installation efficiency is improved;Multi-directional positioning and fixing make the connection more stable, eliminate thread wear, bolt loosening hidden danger, and enhance the reliability of electric energy meter structure.

Description

Technical Field

[0001] This utility model relates to the field of electricity meter technology, specifically to an anti-theft electricity meter. Background Technology

[0002] In power systems, anti-theft electricity meters are crucial equipment for ensuring the accuracy of electricity metering and protecting the economic interests of power companies. With the continuous development of the power industry, higher demands are being placed on the security, reliability, and ease of installation and maintenance of anti-theft electricity meters.

[0003] Currently, existing anti-theft electricity meters typically employ a combination of components such as a base shell and a top cover, with an iron plate mounted on the base shell to enhance anti-theft performance. However, the iron plate is mostly fixed to the base shell using bolts. This connection method has several drawbacks: Firstly, during installation, specialized tools are needed to tighten each bolt individually, which is cumbersome, time-consuming, and labor-intensive, reducing installation efficiency. Secondly, during later maintenance or component replacement, tools are also required to disassemble the bolts, increasing maintenance difficulty. Frequent bolt disassembly can also lead to thread wear, affecting connection stability and thus reducing the overall reliability and lifespan of the electricity meter. Furthermore, bolted connections may carry the risk of bolt loosening. Once loosened, this could affect the normal function of the iron plate, weakening the anti-theft effect of the electricity meter and even posing a safety hazard.

[0004] Therefore, a new structural design is urgently needed to achieve a stable connection between the iron plate and the bottom shell, while simplifying the installation and disassembly process and improving the overall performance and ease of use of the anti-theft electricity meter. Utility Model Content

[0005] In view of the shortcomings of the prior art, this utility model provides an anti-theft electricity meter.

[0006] The technical solution adopted by this utility model is: an anti-theft electricity meter, including a bottom shell, an upper left cover and an upper right cover, and an iron plate set on the bottom wall of the bottom shell. The bottom shell is provided with a positioning structure for installing the iron plate. The positioning structure includes a clamping clip, a side positioning post and a middle positioning post.

[0007] The clamping clip is located on the left and right sides of the iron plate. It includes a positioning frame integrally formed with the bottom shell. An elastic sheet is provided on the side wall of the positioning frame on one side of the iron plate. The elastic sheet has an elastic protrusion that protrudes towards one side of the iron plate.

[0008] There are two side positioning posts, which are respectively located on the upper and lower sides of the iron plate and on the left and right sides of the vertical center line of the iron plate. The upper and lower sides of the iron plate are provided with first positioning holes that are adapted to the side positioning posts.

[0009] There are two middle positioning columns, which are respectively arranged on the left and right sides of the iron plate, and are respectively located above and below the horizontal center line of the iron plate. Second positioning holes adapted to the middle positioning columns are provided on the left and right sides of the iron plate.

[0010] Furthermore, the positioning frame is of a "C" - shaped structure, and slots of 1 - 2 mm are left on both sides of the elastic sheet.

[0011] Furthermore, a positioning step is integrally formed on the side surface of the side positioning column, and the positioning step has an inclined surface gradually inclined towards one side of the iron plate.

[0012] Furthermore, the slope of the inclined surface is 2 - 5°.

[0013] Furthermore, a sealing groove is provided on the side wall end surface of the bottom shell, a sealing gasket is provided on the bottom wall of the sealing groove, and a pressing step for embedding into the above - mentioned sealing groove is provided on the upper left cover.

[0014] The beneficial effects of the present utility model are as follows:

[0015] 1. Convenient disassembly and assembly: This application does not require the use of special tools to tighten bolts. By respectively sleeving the first positioning hole and the second positioning hole on the iron plate onto the side positioning column and the middle positioning column, and using the elastic protrusion of the elastic sheet in the pressing and clamping member to press and fix the iron plate, the installation of the iron plate and the bottom shell can be quickly completed, greatly simplifying the installation process, significantly improving the installation efficiency, and effectively reducing the labor and time costs.

[0016] 2. Stable connection: The cooperation of the side positioning column, the middle positioning column and the corresponding positioning holes on the iron plate, as well as the limiting and elastic pressing of the iron plate from both left and right sides by the pressing and clamping member, form a multi - directional and three - dimensional fixed structure. This structural design makes the fixation of the iron plate on the bottom shell more stable, avoiding loosening problems caused by factors such as vibration and external forces. Compared with bolt connection, it eliminates potential problems affecting connection stability such as thread wear and bolt loosening, thus effectively improving the reliability of the overall structure of the electric energy meter and ensuring the stable performance of functions such as anti - electricity theft of the iron plate.

[0017] 3. Facilitating later maintenance: Since there is no need to拆卸 bolts, the iron plate can be easily removed by overcoming the elastic force of the elastic sheet, greatly reducing the difficulty of overhaul and component replacement, reducing the maintenance time and workload. At the same time, it avoids damage to components caused by frequent拆卸 of bolts, extends the service life of each component of the electric energy meter, and further reduces the maintenance cost.

[0018] In addition to the purposes, features and advantages described above, the present utility model has other purposes, features and advantages.

[0019] Next, the present utility model will be further described in detail with reference to the accompanying drawings. Description of the Drawings

[0020] Figure 1 This is a schematic diagram of the structure of this utility model.

[0021] Figure 2 This is a structural diagram of the bottom shell and the iron plate.

[0022] Figure 3 for Figure 2 Enlarged diagram of point A in the middle.

[0023] Figure 4 This is a top view of the bottom shell and iron plate.

[0024] Figure 5 This is a cross-sectional schematic diagram of the present invention.

[0025] Figure 6 This is a schematic diagram of the upper left cover.

[0026] Figure 1-6 Components: 1. Bottom shell; 2. Upper left cover; 3. Upper right cover; 4. Iron plate; 5. Clamping clip; 6. Side positioning post; 7. Middle positioning post; 8. Positioning frame; 9. Elastic sheet; 10. Elastic protrusion; 11. First positioning hole; 12. Second positioning hole; 13. Groove; 14. Positioning step; 15. Inclined surface; 16. Sealing groove; 17. Sealing gasket; 18. Clamping step. Detailed Implementation

[0027] 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.

[0028] It should be noted that if the embodiments of this utility model involve directional indicators (such as up, down, left, right, front, back, etc.), the directional indicators are only used to explain the relative positional relationship and movement of the components in a certain specific posture (as shown in the figure). If the specific posture changes, the directional indicators will also change accordingly.

[0029] This utility model provides an anti-theft electricity meter.

[0030] In this embodiment, refer to Figure 1-6 The anti-theft electricity meter includes a bottom shell 1, an upper left cover 2 and an upper right cover 3, and an iron plate 4 set on the bottom wall of the bottom shell. The bottom shell is provided with a positioning structure for installing the iron plate 4. The positioning structure includes a clamping clip 5, a side positioning post 6 and a middle positioning post 7.

[0031] The pressing and clamping member 5 is located on the left and right sides of the iron plate. It includes a positioning frame 8 integrally formed with the bottom case. An elastic piece 9 is provided on the side wall of the positioning frame 8 on one side of the iron plate. The elastic piece 9 has an elastic convex part 10 protruding towards the iron plate side.

[0032] There are two side positioning columns 6, which are respectively arranged on the upper and lower sides of the iron plate 4 and are respectively located on the left and right sides of the vertical center line of the iron plate. First positioning holes 11 adapted to the side positioning columns are provided on the upper and lower sides of the iron plate.

[0033] There are two middle positioning columns 7, which are respectively arranged on the left and right sides of the iron plate and are respectively located on the upper and lower sides of the horizontal center line of the iron plate. Second positioning holes 12 adapted to the middle positioning columns are provided on the left and right sides of the iron plate.

[0034] In the above technical solution, a positioning structure composed of a pressing and clamping member, side positioning columns and middle positioning columns is arranged in the bottom case to realize the connection between the iron plate and the bottom case. The side positioning columns and the middle positioning columns cooperate with the corresponding first positioning holes and second positioning holes on the iron plate to provide stable and reliable positioning; the elastic piece of the pressing and clamping member applies pressure to the iron plate through the elastic convex part to realize lateral limit, and multiple components cooperate to form a three-dimensional fixing structure.

[0035] Abandoning the traditional bolt connection method, the iron plate can be quickly installed without tools, improving the installation efficiency; multi-directional positioning and fixing make the connection more stable, avoiding loosening, eliminating hidden dangers such as thread wear, enhancing the structural reliability of the electric energy meter, ensuring the stability of the anti-stealing electricity function, and being convenient for later maintenance, reducing the maintenance cost.

[0036] Among them, there are two side positioning columns and two middle positioning columns, and they are arranged in a left-right and up-down staggered manner to ensure the stability and accuracy of the iron plate positioning.

[0037] Specifically, the positioning frame is of a "C" - shaped structure, and 1 - 2 mm slots 13 are left on both sides of the elastic piece.

[0038] In this embodiment, the positioning frame adopts a "C" - shaped structure, and 1 - 2 mm slots are provided on both sides of the elastic piece, making it easier to undergo elastic deformation, so that when subjected to an external force, the elastic convex part can squeeze or reset more flexibly towards the iron plate side.

[0039] Specifically, a positioning step 14 is integrally formed on the side surface of the side positioning column. The positioning step 14 has an inclined surface 15 gradually inclined towards the iron plate side.

[0040] In this embodiment, the positioning step integrally formed on the side of the side positioning post has an inclined surface that tilts towards the iron plate. When the iron plate is installed, the first positioning hole on the iron plate contacts the side positioning post, and the inclined surface acts as a guide to guide the positioning hole to smoothly fit into the side positioning post. At the same time, during the process of fitting the iron plate, the first positioning hole gradually forms a compression with the inclined surface, which can enhance the connection stability of the iron plate.

[0041] Specifically, the slope of the inclined plane is 2-5°.

[0042] In this embodiment, the slope of the inclined surface is limited to 2-5°, which ensures that the inclined surface has a good guiding effect and that a good compression is formed between it and the first positioning hole, thus ensuring connection stability.

[0043] Specifically, a sealing groove 16 is provided on the side wall end face of the bottom shell, a sealing gasket 17 is provided on the bottom wall of the sealing groove 16, and a pressing step 18 embedded in the sealing groove is provided on the upper left cover.

[0044] In this embodiment, the sealing groove on the side wall end face of the bottom shell cooperates with the sealing gasket to form a sealed space; the pressing step of the upper left cover is embedded in the sealing groove, applies pressure to the sealing gasket, causes it to deform, and fills the gap between the sealing groove and the pressing step, thereby achieving a good sealing effect and preventing external dust, moisture and other substances from entering the inside of the electricity meter.

[0045] Attention all technical personnel: Although this utility model has been described according to the specific embodiments above, the concept of this utility model is not limited to this utility model. Any modification that utilizes the concept of this utility model will be included within the scope of protection of this patent right.

Claims

1. An electricity meter for preventing electricity larceny, comprising a bottom shell, a left upper cover and a right upper cover, characterized in that: It further includes an iron plate disposed on the bottom wall of the bottom case, and a positioning structure for installing the iron plate is provided inside the bottom case. The positioning structure includes a pressing clip, side positioning columns and a middle positioning column; The pressing clips are located on the left and right sides of the iron plate. Each pressing clip includes a positioning frame integrally formed with the bottom case. An elastic sheet is provided on the side wall of the positioning frame on one side of the iron plate, and the elastic sheet has an elastic convex portion protruding toward the iron plate; There are two side positioning columns, which are respectively arranged on the upper and lower sides of the iron plate and are respectively located on the left and right sides of the vertical center line of the iron plate. First positioning holes adapted to the side positioning columns are provided on the upper and lower sides of the iron plate; There are two middle positioning columns, which are respectively arranged on the left and right sides of the iron plate and are respectively located on the upper and lower sides of the horizontal center line of the iron plate. Second positioning holes adapted to the middle positioning columns are provided on the left and right sides of the iron plate.

2. The anti-theft electricity meter according to claim 1, characterized in that: The positioning frame is of a "C" - shaped structure, and slotted openings of 1 - 2 mm are left on both sides of the elastic sheet.

3. The anti-theft electricity meter according to claim 1, characterized in that: A positioning step is integrally formed on the side surface of the side positioning column, and the positioning step has an inclined surface gradually inclined toward the iron plate.

4. The anti-theft electricity meter according to claim 3, characterized in that: The slope of the inclined surface is 2 - 5°.

5. The anti-theft electricity meter according to claim 1, characterized in that: A sealing groove is provided on the side wall end surface of the bottom case, a sealing gasket is provided on the bottom wall of the sealing groove, and a pressing step for embedding into the above - mentioned sealing groove is provided on the upper left cover.

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