An electric energy meter shell assembly structure

Abstract

The utility model discloses an electric energy meter shell assembly structure, including bottom shell, left upper cover, right upper cover and slide lock pin. Bottom shell is equipped with the outlet hole, the connecting step and the inlay groove, left upper cover has the elastic connecting piece, the pressed part, the inlay step and the connecting groove, and the right upper cover both sides wall is equipped with the plugboard, the compression part and the lock hole, and slide lock pin is installed in the bottom shell insertion slot side wall. When assembling, left upper cover cooperates through inlay step and inlay groove, connecting groove and connecting step and bottom shell, and right upper cover plugboard inserts into insertion slot, and compression part tightens pressed part, and slide lock pin inserts into lock hole and realizes right upper cover and bottom shell locking. This structure discards screw fastening, realizes quick assembly and disassembly, and each component cooperates and forms stable connection, guarantees shell leakproofness and protective property, reduces maintenance cost, and effectively satisfies the demand of electric power industry to electric energy meter high efficiency, reliable operation.

Description

Technical Field

[0001] This utility model relates to the field of electricity meter technology, specifically to an assembly structure for an electricity meter casing. Background Technology

[0002] In the field of electricity metering equipment, the reliability and ease of use of the electricity meter's casing structure are crucial, as it serves as the core device for recording user electricity consumption data. The electricity meter casing not only needs to provide physical protection for the internal electronic components but also must meet performance requirements such as waterproofing, dustproofing, and electromagnetic interference protection, while also facilitating installation, disassembly, and maintenance.

[0003] Currently, most commercially available electricity meter casings are assembled using screw fastening or snap-fit ​​connections. While screw fastening provides a secure connection, it requires significant time for screw tightening during mass production and on-site installation, reducing assembly efficiency. Snap-fit ​​connections simplify installation, but over time, the snaps are prone to loosening due to impacts or material aging, leading to decreased sealing and affecting the stability and lifespan of the meter's internal electronic components. Furthermore, existing assembly structures are prone to screw loss and snap-fit ​​damage during disassembly, increasing maintenance costs and complexity. Therefore, there is an urgent need for an electricity meter casing assembly structure that allows for rapid assembly and disassembly, ensures connection stability, and eliminates the need for bolt fastening, to meet the growing demands for high efficiency and reliability in the power industry. Utility Model Content

[0004] To address the shortcomings in the prior art, this utility model provides an assembly structure for the casing of an electricity meter.

[0005] The technical solution adopted by this utility model is: an assembly structure for an electricity meter casing, comprising:

[0006] The bottom shell has a cable outlet hole at one end and a connecting step on the inner wall at the other end. The step of the bottom shell has an interlocking groove along its surface.

[0007] The upper left cover has an elastic connecting piece on one end and a pressing part on the other end. The bottom of the upper left cover has a mating step that fits into the aforementioned mating groove. One side of the elastic connecting piece has a connecting groove that connects and engages with the connecting step. The bottom shell and the upper left cover have corresponding slots on the side of the cable outlet. After the upper left cover is closed onto the bottom shell, the slots of the bottom shell and the slots of the upper left cover are aligned.

[0008] The upper right cover has insert plates for inserting into the slots and pressing parts for pressing against the pressed part on the two side walls on the side of the opening. The insert plates are provided with lock holes.

[0009] A sliding locking pin is provided on the slot side wall of the bottom shell. By sliding the locking pin, it can be inserted into the lock hole and pulled out of the lock hole to lock and unlock the upper right cover and the bottom shell.

[0010] Furthermore, the bottom of the connecting step is provided with a sliding ramp, and the upper side is provided with a rounded corner.

[0011] Furthermore, guide slopes are provided on the upper and lower sides of the connecting groove.

[0012] Furthermore, the slot sidewall of the bottom shell is provided with a sliding hole for installing a sliding locking pin, and an elastic element is provided between the bottom wall of the sliding hole and the end of the sliding locking pin, the elastic element having an elastic force to push the sliding locking pin out of the sliding hole.

[0013] Furthermore, both the bottom wall of the sliding hole and the end of the sliding locking pin are provided with positioning holes for positioning the elastic element.

[0014] Furthermore, a groove is provided on one side of the sliding hole, an assembly opening is provided on the inner wall of the sliding hole, and a handle extending from the groove is provided on the sliding locking pin.

[0015] The beneficial effects of this utility model are:

[0016] First, the combination design of the bottom shell, upper left cover, upper right cover and sliding locking pin abandons the traditional screw fastening method. Through the cooperation of the interlocking steps and interlocking grooves, the precise docking of the insert plate and slot, and the insertion and removal of the sliding locking pin, the shell can be quickly assembled and disassembled, which greatly improves the efficiency of production assembly and on-site maintenance and reduces the time cost of manual operation.

[0017] Secondly, the fitting structure between the upper left cover and the bottom shell, the cooperation between the pressing and pressed parts of the upper right cover, and the secure locking of the upper right cover by the sliding locking pin form a stable connection structure. Compared to traditional snap-fit ​​structures that are prone to loosening, this structure offers greater stability.

[0018] Furthermore, since no bolts are required for connection, the problems of easy loss of screws and cumbersome installation are solved. This not only reduces material loss and labor costs during maintenance, but also reduces the risk of equipment failure caused by lost bolts, improves the ease of assembly, and makes the assembly and maintenance of the electricity meter casing more convenient and efficient, effectively meeting the urgent needs of the power industry for efficient and reliable operation of electricity meters.

[0019] In addition to the objectives, features and advantages described above, this utility model has other objectives, features and advantages.

[0020] The present invention will now be described in further detail with reference to the accompanying drawings. Attached Figure Description

[0021] Figure 1 This is a schematic diagram of the structure of this utility model.

[0022] Figure 2 This is an exploded view of the present invention.

[0023] Figure 3 Bit Figure 2 Enlarged diagram of point A in the middle.

[0024] Figure 4 for Figure 2 Enlarged diagram of point B in the middle.

[0025] Figure 5 This is a schematic diagram of the bottom shell structure.

[0026] Figure 6 This is a schematic diagram of a partial cross-section at the sliding hole.

[0027] Figure 7 This is a schematic diagram of the upper right cover.

[0028] Figure 1-7 In the middle: 1. Bottom shell; 2. Cable outlet; 3. Connecting step; 4. Fitting groove; 5. Upper left cover; 6. Elastic connecting piece; 7. Pressed part; 8. Fitting step; 9. Connecting groove; 10. Slot; 11. Upper right cover; 12. Insert plate; 13. Pressing part; 14. Locking hole; 15. Sliding locking pin; 16. Sliding bevel; 17. Rounded corner; 18. Guide bevel; 19. Sliding hole; 20. Elastic element; 21. Positioning hole; 22. Groove; 23. Assembly port; 24. Handle. Detailed Implementation

[0029] 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.

[0030] 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.

[0031] This utility model provides an assembly structure for the casing of an electricity meter.

[0032] In this embodiment, refer to Figure 1-7The electricity meter casing assembly structure includes:

[0033] The bottom shell 1 has a wire outlet hole 2 at one end and a connecting step 3 on the inner wall of the other end. The step of the bottom shell 1 has an interlocking groove 4 along its surface.

[0034] The upper left cover 5 has an elastic connecting piece 6 on one end and a pressed part 7 on the other end. The bottom of the upper left cover has a mating step 8 that fits into the aforementioned mating groove. The elastic connecting piece has a connecting groove 9 that connects and engages with the connecting step on one side. The bottom shell and the upper left cover have corresponding slots 10 on the side of the cable outlet. After the upper left cover is closed onto the bottom shell, the slots of the bottom shell and the slots of the upper left cover are aligned.

[0035] The upper right cover 11 has insert plates 12 for inserting into the slots and pressing parts 13 for pressing against the pressed part on the two side walls on the side of the opening. The insert plates are provided with lock holes 14.

[0036] A sliding locking pin 15 is provided on the slot side wall of the bottom shell. The upper right cover and the bottom shell can be locked and unlocked by sliding the locking pin to insert into the lock hole and pull it out of the lock hole.

[0037] In the above technical solution, the bottom shell and the upper left cover are initially connected and fitted using fitting grooves and fitting steps, connecting steps and connecting grooves, with a corresponding slot provided on one side of the outlet hole; the upper right cover is inserted into the slot by an insert plate, and the pressing part is pressed against the pressed part to cooperate with the bottom shell and the upper left cover; the sliding locking pin slides into or pulls out the locking hole on the insert plate to realize the locking and unlocking of the upper right cover and the bottom shell. This enables rapid assembly and disassembly of the electricity meter casing without the need for screw fastening, improving assembly efficiency; the cooperation between the various components forms a stable connection, ensuring the sealing and protective performance of the casing, effectively protecting the internal electronic components, and extending the service life of the electricity meter.

[0038] Assembly steps for the outer casing:

[0039] 1. Assembly of the bottom shell and the upper left cover: First, align the fitting step at the bottom of the upper left cover with the fitting groove on the surface of the bottom shell step, and slowly press down the upper left cover to make the two fit together. At the same time, the connecting groove on the elastic connecting piece at one end of the upper left cover connects and engages with the connecting step on the inner wall of the other end of the bottom shell, completing the initial positioning. At this time, the upper left cover is closed on the bottom shell, and the two slots are aligned.

[0040] 2. Installation of the upper right cover: Pick up the upper right cover and align the insert plates on both sides of the opening with the slots already aligned with the slots on the bottom shell and the upper left cover. Insert the plates smoothly until they are fully inserted into the slots. At this point, the pressing part of the upper right cover will accurately press against the pressed part of the upper left cover, further securing the upper left cover.

[0041] Locking and securing: After the upper right cover insert plate is inserted into the slot, push the sliding locking pin located on the side wall of the bottom shell slot to insert the locking pin into the lock hole on the insert plate. This operation securely locks the upper right cover and the bottom shell, completing the assembly process of the entire electricity meter casing, including the bottom shell, upper left cover, and upper right cover.

[0042] Specifically, the bottom of the connecting step is provided with a sliding ramp 16, and the upper side is provided with a rounded corner 17.

[0043] In this embodiment, the sliding ramp at the bottom of the connecting step can guide the elastic connecting piece of the upper left cover to slide out smoothly when the upper left cover is disassembled, reducing friction; the rounded corner on the upper side can make the connecting groove of the upper left cover fit more smoothly with the connecting step during assembly, avoiding sharp corners from hindering the assembly process.

[0044] Specifically, the upper and lower sides of the connecting groove are provided with guide slopes 18.

[0045] In this embodiment, the guide slopes on the upper and lower sides of the connecting groove can guide the connection between the upper left cover and the bottom shell during assembly, making it easier for the connecting groove on the elastic connecting piece to align and cooperate with the connecting step of the bottom shell, reducing the difficulty of alignment during assembly.

[0046] Specifically, the slot sidewall of the bottom shell is provided with a sliding hole 19 for installing a sliding locking pin, and an elastic element 20 is provided between the bottom wall of the sliding hole and the end of the sliding locking pin. The elastic element has an elastic force to push the sliding locking pin out of the sliding hole.

[0047] In this embodiment, the sliding hole on the side wall of the bottom shell slot is used to install the sliding locking pin. The elastic element between the bottom wall of the sliding hole and the end of the sliding locking pin provides elastic force. When no external force is applied, the elastic element pushes the sliding locking pin out of the sliding hole, so that the locking pin is automatically inserted into the locking hole of the upper right cover plate to achieve automatic locking. When disassembly is required, the elastic force is overcome to pull the locking pin out of the locking hole.

[0048] Specifically, both the bottom wall of the sliding hole and the end of the sliding locking pin are provided with positioning holes 21 for positioning the elastic element.

[0049] In this embodiment, the positioning holes at the bottom wall of the sliding hole and the end of the sliding locking pin are used to fix the elastic element, limit the displacement of the elastic element during operation, ensure that the elastic element is always in the correct position, stably provide elastic force, and ensure the normal operation of the sliding locking pin.

[0050] Specifically, a groove 22 is provided on one side of the sliding hole, an assembly opening 23 is provided on the inner wall of the sliding hole, and a handle 24 extending from the groove is provided on the sliding locking pin.

[0051] In this embodiment, the slot on one side of the sliding hole and the assembly port on the inner wall facilitate the installation and disassembly of the sliding lock pin; the handle on the sliding lock pin extends from the slot, and the operator can easily push the sliding lock pin to slide in the sliding hole by operating the handle to realize the locking and unlocking operations.

[0052] Please note to 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 electric energy meter housing assembly structure, characterized by include: The bottom shell has a cable outlet hole at one end and a connecting step on the inner wall at the other end. The step of the bottom shell has an interlocking groove along its surface. The upper left cover has an elastic connecting piece on one end and a pressing part on the other end. The bottom of the upper left cover has a mating step that fits into the aforementioned mating groove. One side of the elastic connecting piece has a connecting groove that connects and engages with the connecting step. The bottom shell and the upper left cover have corresponding slots on the side of the cable outlet. After the upper left cover is closed onto the bottom shell, the slots of the bottom shell and the slots of the upper left cover are aligned. The upper right cover has insert plates for inserting into the slots and pressing parts for pressing against the pressed part on the two side walls on the side of the opening. The insert plates are provided with lock holes. A sliding locking pin is provided on the slot side wall of the bottom shell. By sliding the locking pin, it can be inserted into the lock hole and pulled out of the lock hole to lock and unlock the upper right cover and the bottom shell.

2. The energy meter housing assembly structure according to claim 1, characterized in that: The bottom of the connecting step is provided with a sliding ramp, and the upper side is provided with a rounded corner.

3. The energy meter housing assembly structure according to claim 1, characterized in that: The upper and lower sides of the connecting groove are provided with guide slopes.

4. The energy meter housing assembly structure according to claim 1, characterized in that: The slot sidewall of the bottom shell is provided with a sliding hole for installing a sliding locking pin. An elastic element is provided between the bottom wall of the sliding hole and the end of the sliding locking pin. The elastic element has an elastic force to push the sliding locking pin out of the sliding hole.

5. The energy meter housing assembly structure according to claim 4, characterized in that: Both the bottom wall of the sliding hole and the end of the sliding locking pin are provided with positioning holes for positioning the elastic element.

6. The energy meter housing assembly structure according to claim 5, characterized in that: A groove is provided on one side of the sliding hole, and an assembly opening is provided on the inner wall of the sliding hole. A handle extending from the groove is provided on the sliding locking pin.

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