An electricity meter convenient to assemble

Abstract

The utility model belongs to the electric energy meter technical field especially relates to an electric energy meter convenient to assemble, including base, circuit module and upper cover, circuit module sets up in the base, upper cover is used for covering the base, the base includes two limit blocks, two limit blocks all set up in the top department of base along Z direction, and respectively located on the inner wall of two sides of base along X direction, set up on the limit block limit inclined plane, the upper cover includes two connecting blocks, two connecting blocks all set up in the top department of upper cover along Z direction, and respectively located on the two sides of upper cover along X direction, set up connecting recess on connecting block, connecting recess and limit block along Y direction adaptation abuts, and set up contact inclined plane on connecting recess, still include locking assembly, locking assembly installs in the bottom department of upper cover along Z direction, is used for connecting and fixing the bottom of upper cover and base along Z direction, the utility model has the beneficial effect that the use number of fastener is greatly reduced, simplifies the operation process of assembly and overhaul, improves work efficiency.

Description

Technical Field

[0001] This utility model belongs to the field of electricity meter technology, and in particular relates to an electricity meter that is easy to assemble. Background Technology

[0002] Electricity meters are the core devices in power supply and distribution systems for measuring electricity consumption and collecting electricity data. They are widely used in various scenarios such as residential power distribution and industrial and commercial power supply. The housing structure, consisting of a base and a top cover, is used to house and protect the internal circuit modules, and to isolate the metering elements from external dust and moisture. Its connection stability and assembly accuracy are important foundations for ensuring the long-term stable operation of electricity meters.

[0003] In existing technologies, most electricity meters typically use multiple screws to fasten the base and top cover. However, this screw-fastening structure requires individual operation of each fastener during assembly and subsequent maintenance and disassembly, resulting in numerous steps and low assembly efficiency. Utility Model Content

[0004] The purpose of this utility model is to address the aforementioned technical problems by providing an easy-to-assemble electricity meter.

[0005] In view of this, the present invention provides an easy-to-assemble electricity meter, including a base, a circuit module and a top cover. The circuit module is disposed inside the base, and the top cover is disposed on the base to seal the base. The base includes two limiting blocks, both of which are disposed at the top of the base along the Z direction and respectively located on the inner walls of the base on both sides along the X direction. Limiting inclined surfaces are provided on the limiting blocks. The top cover includes two connecting blocks, both of which are located at the top of the top cover along the Z direction and on both sides of the top cover along the X direction. The connecting blocks are provided with connecting grooves, which are adapted to abut against the limiting blocks along the Y direction. The connecting grooves are provided with contact slopes for abutting against the limiting slopes. It also includes a locking assembly, which is installed at the bottom of the top cover along the Z-direction and is used to connect and fix the bottom of the top cover along the Z-direction to the base.

[0006] Furthermore, the base is also provided with a fixing boss, which protrudes along the Y direction; The top cover has a fixing groove, and when the top cover is placed on the base, the fixing boss and the fixing groove are fitted together.

[0007] Furthermore, a positioning groove is provided on the fixed boss, and a positioning rib is provided on the top cover. The positioning rib and the positioning groove are adapted to be inserted into each other.

[0008] Furthermore, there are several positioning slots, and these positioning slots are arranged in a linear array along the X direction; There are also several positioning ribs, and each of the positioning ribs is matched and plugged into a corresponding positioning groove.

[0009] Furthermore, the locking component includes: A locking screw is provided, which passes through the upper cover and the fixing boss along the X direction; The locking nut and the locking screw are fixed by threaded connection at their ends.

[0010] The beneficial effects of this utility model are: The assembly of the base and top cover of this energy meter involves first pressing the top of the top cover along the Z-axis against the top of the base along the Z-axis. Then, the top cover is rotated around the edge where it contacts the base, gradually allowing it to sit on the base. The limiting block and connecting groove then engage, securing the top of the top cover and the top of the base along the Z-axis. A locking screw passes through the top cover and base along the X-axis, and a locking nut connects to the end of the locking screw, locking the bottom of the top cover and the bottom of the base along the Z-axis. This achieves a complete assembly and fixation of the base and top cover. This eliminates the need for multiple screws for locking, significantly reducing the number of fasteners used, simplifying assembly and maintenance procedures, and effectively improving work efficiency. Attached Figure Description

[0011] Figure 1 This is a schematic diagram of the structure of this utility model; Figure 2 This is an exploded view of the structure of this utility model; Figure 3 This is a schematic diagram of the upper cover structure of this utility model; Figure 4 This is a partial structural cross-sectional view of the upper cover when it is placed on the base in this utility model; Figure 5 This is a partial structural cross-sectional view of the upper cover rotating out of the base in this utility model; The markings in the diagram are as follows: 1. Base; 2. Top cover; 21. Fixing groove; 22. Positioning rib; 3. Limiting block; 31. Limiting inclined surface; 4. Connecting block; 41. Connecting groove; 42. Contact inclined surface; 5. Fixing boss; 51. Positioning groove; 6. Locking assembly; 61. Locking screw; 62. Locking nut. Detailed Implementation

[0012] The technical solutions of the embodiments of this application will be clearly described below with reference to the accompanying drawings. Obviously, the described embodiments are only some, not all, of the embodiments of this application. Based on the embodiments of this application, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of this application.

[0013] In the description of this application, it should be noted that the terminology used herein is for the purpose of describing particular embodiments only and is not intended to limit the exemplary embodiments according to this application. For ease of description, the dimensions of the various parts shown in the drawings are not drawn to actual scale. Techniques, methods, and devices known to those skilled in the art may not be discussed in detail, but where appropriate, such techniques, methods, and devices should be considered part of the specification. In all examples shown and discussed herein, any specific values ​​should be interpreted as merely exemplary and not as limitations. Therefore, other examples of exemplary embodiments may have different values. It should be noted that similar reference numerals and letters in the following drawings denote similar items; therefore, once an item is defined in one drawing, it need not be further discussed in subsequent drawings.

[0014] Example 1:

[0015] This embodiment provides an easy-to-assemble electricity meter, including a base 1, a circuit module and a top cover 2. The circuit module is disposed inside the base 1, and the top cover 2 is disposed on the base 1 to seal the base 1. The base 1 includes two limiting blocks 3, both of which are disposed at the top of the base 1 along the Z direction and are respectively located on the inner walls of the base 1 on both sides along the X direction. The limiting blocks 3 are provided with limiting inclined surfaces 31. The upper cover 2 includes two connecting blocks 4. Both connecting blocks 4 are located at the top of the upper cover 2 along the Z direction and are respectively located on both sides of the upper cover 2 along the X direction. The connecting blocks 4 are provided with connecting grooves 41. The connecting grooves 41 and the limiting blocks 3 are adapted to abut against each other along the Y direction. The connecting grooves 41 are provided with contact slopes 42 for abutting against the limiting slopes 31. It also includes a locking component 6, which is installed at the bottom of the upper cover 2 along the Z direction and is used to connect and fix the bottom of the upper cover 2 along the Z direction to the base 1.

[0016] In this technical solution, the base 1 is a box-shaped shell structure with an open top, integrally molded from an insulating rigid material, with an enclosed cavity inside to accommodate and support the circuit module and related wiring components. Limiting blocks 3 are respectively provided on the inner walls of both sides of the base 1 along the X direction. The two limiting blocks 3 are symmetrically distributed and located at the top edge of the base 1 along the height direction, integrally molded with the inner wall of the base 1. Each limiting block 3 has a limiting inclined surface 31 on the side facing inwards from the base 1, which forms an inclined abutment with the corresponding structure of the upper cover 2, providing dual limiting in both the Z and X directions for the upper part of the upper cover 2.

[0017] The upper cover 2 is a cover structure made of insulating rigid material. It fits over the opening of the base 1 to seal the internal space of the base 1 and prevent external dust and moisture from contacting the internal circuit modules. Connecting blocks 4 are respectively provided on both sides of the upper cover 2 along the X direction. The two connecting blocks 4 are symmetrically distributed and located at the top of the upper cover 2 along the Z direction. The connecting blocks 4 are integrally formed with the upper cover 2. Each connecting block 4 has a connecting groove 41, the internal contour of which matches the shape of the limiting block 3. The connecting groove 41 has a contact slope 42.

[0018] When assembling the upper cover 2 and the base 1 of the electricity meter, the top of the upper cover 2 along the Z-direction is first pressed against the top of the base 1 along the Z-direction. Then, the upper cover 2 is rotated around the edge where it abuts the base 1, allowing it to gradually cover the base 1. During the process of the upper cover 2 being installed, the connecting groove 41 gradually fits onto the outside of the limiting block 3, so that the contact slope 42 and the limiting slope 31 fit together. Through the squeezing and limiting effect of the slope, the upper cover 2 is restricted from coming out along the Y-direction and from shifting along the Z-direction, thus achieving the pre-installation positioning connection between the upper cover 2 and the base 1.

[0019] Furthermore, the base 1 is also provided with a fixing boss 5, which is integrally formed with the base 1 and protrudes from the base 1 along the Y direction; the upper cover 2 is provided with a fixing groove 21, which is recessed inward along the Y direction, and the groove contour of the fixing groove 21 matches the shape of the fixing boss 5. When the upper cover 2 is closed, the fixing boss 5 is completely embedded in the fixing groove 21, forming a plug-in positioning, and at the same time providing a through-connected load-bearing base for the locking structure.

[0020] Furthermore, the fixed boss 5 is also provided with a number of positioning grooves 51, which are located on the top end face of the fixed boss 5 and arranged in a linear array along the X direction. On the inner side of the upper cover 2, corresponding to the position of the fixed groove 21, there are positioning ribs 22 in the same number as the positioning grooves 51. The positioning ribs 22 protrude along the Y direction and are evenly distributed along the X direction. Through this structural design, when the upper cover 2 and the base 1 are assembled, each positioning rib 22 is inserted into its corresponding positioning groove 51. The interlocking of multiple ribs with the grooves improves the alignment accuracy of the upper cover 2 and the base 1, limiting any movement of the upper cover 2.

[0021] After the pre-installation and positioning connection is completed, the bottom of the upper cover 2 along the Z-direction and the base 1 are connected and fixed by the locking assembly 6, thereby achieving the fixed assembly of the upper cover 2 and the base 1. Further, the locking assembly 6 includes a locking screw 61 and a locking nut 62. The locking screw 61 passes through the upper cover 2 and the fixing boss 5 along the X-direction, and the locking nut 62 is threadedly connected to the end of the locking screw 61. The tail of the locking screw 61 passes through the inner through hole of the side wall of the upper cover 2 and the fixing boss 5 from one side along the X-direction, and then exits from the other side wall of the upper cover 2 along the X-direction. The locking nut 62 is threadedly connected to the exiting end of the locking screw 61. After tightening the locking nut 62, the axial clamping force between the screw head and the nut secures the lower part of the upper cover 2 along the Z-direction to the fixing boss 5, thereby firmly fixing the upper cover 2 and the base 1 and preventing the upper cover 2 from sliding outwards along the Y-direction.

[0022] In summary, the assembly of the base 1 and the top cover 2 of the electricity meter is achieved by first pressing the top of the top cover 2 along the Z-direction against the top of the base 1 along the Z-direction, then rotating the top cover 2 around the edge where it abuts the base 1, allowing the top cover 2 to gradually cover the base 1. The limiting block 3 and the connecting groove 41 then engage, securing the top of the top cover 2 along the Z-direction to the top of the base 1 along the Z-direction. Next, a locking screw 61 passes through the top cover 2 and the base 1 along the X-direction, and finally, a locking nut 62 connects to the end of the locking screw 61, locking the bottom of the top cover 2 along the Z-direction to the bottom of the base 1 along the Z-direction. This completes the overall assembly and fixation of the base 1 and the top cover 2. This eliminates the need for multiple screws for locking, significantly reducing the number of fasteners used, simplifying the assembly and maintenance process, and effectively improving work efficiency.

[0023] The embodiments of this application have been described above with reference to the accompanying drawings. Unless otherwise specified, the embodiments and features in the embodiments of this application can be combined with each other. This application is not limited to the specific embodiments described above. The specific embodiments described above are merely illustrative and not restrictive. Those skilled in the art can make many other forms under the guidance of this application without departing from the spirit and scope of the claims, and all of these forms are within the protection scope of this application.

Claims

1. An easy-to-assemble electricity meter, comprising a base (1), a circuit module and a top cover (2), wherein the circuit module is disposed within the base (1) and the top cover (2) is disposed on the base (1) to seal the base (1), characterized in that: The base (1) includes two limiting blocks (3), both of which are located at the top of the base (1) along the Z direction and on the inner walls of the base (1) along the X direction respectively. The limiting blocks (3) are provided with limiting inclined surfaces (31). The upper cover (2) includes two connecting blocks (4). Both connecting blocks (4) are located at the top of the upper cover (2) along the Z direction and on both sides of the upper cover (2) along the X direction. A connecting groove (41) is provided on the connecting block (4). The connecting groove (41) and the limiting block (3) are adapted to abut against each other along the Y direction. A contact slope (42) is provided on the connecting groove (41) for abutting against the limiting slope (31). It also includes a locking assembly (6), which is installed at the bottom of the upper cover (2) along the Z direction for connecting and fixing the bottom of the upper cover (2) along the Z direction to the base (1).

2. The easy-to-assemble electricity meter according to claim 1, characterized in that, The base (1) is also provided with a fixing boss (5), which protrudes along the Y direction; The upper cover (2) is provided with a fixing groove (21). When the upper cover (2) is placed on the base (1), the fixing boss (5) and the fixing groove (21) are adapted to be inserted.

3. The easy-to-assemble electricity meter according to claim 2, characterized in that, The fixed boss (5) is also provided with a positioning groove (51), and the upper cover (2) is provided with a positioning rib (22). The positioning rib (22) and the positioning groove (51) are adapted to be inserted into each other.

4. The easy-to-assemble electricity meter according to claim 3, characterized in that, There are several positioning slots (51), and the several positioning slots (51) are arranged in a linear array along the X direction; The number of positioning ribs (22) is also several, and the several positioning ribs (22) are respectively matched and plugged into the several positioning grooves (51).

5. The energy meter that is easy to assemble according to claim 2, characterized in that, The locking component (6) includes: A locking screw (61) is provided that passes through the upper cover (2) and the fixing boss (5) along the X direction; A locking nut (62) is used to fix the ends of the locking nut (62) and the locking screw (61) by threaded connection.

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